A model plane is 1/48 the size of an actual plane. If the model plane is 28 inches long, how long is the actual plane?

Question

25-02-2015
Mathematics

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A model plane is 1/48 the size of an actual plane. If the model plane is 28 inches long, how long is the actual plane?

Answer :

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Esquared Esquared · Answer 1 · 2015-02-25T19:30:25-05:00

Esquared Esquared

25-02-2015

You would say 1/48=28/x and solve the proportion to get an answer of 1344 inches, which is 112 feet.

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facundo3141592 facundo3141592 · Answer 2 · 2019-10-07T12:05:46-04:00

Answer: Hello there!

We know that the model is 28 inches long, and the scale of the model is 1/48 with respect to the real plane.

Now we want to know how long is the actual plane.

If the scale of the model is 1/48, this means that 48 models are equal in length to the actual plane. Then the length of the actual plane is 48 times the length of the model, this is:

L = 48*28 inches = 1344 inches, we could change the units for others more suiting for a plane, using that 1 feet = 12 inches, then we could write the length in feet using dividing the length in inches by 12.

L =1344/12 = 112 feets.