Question

A model of the George Washington Bridge usesa scale of 3 inches = 80 feet. If the bridge is213 feet tall, how tall is the model?

Answer 1

You know that the scale used in the model is:

`3in=80ft`

And the height of the bridge is:

`213ft`

Let be "x" the height (in inches) of the model of the George Washington Bridge.

Using the data provided on the exercise, you can set up the following proportion:

`(3)/(80)=(x)/(213)`

Solving for "x", you get:

`\begin{gathered} (3)/(80)\cdot213=x \\ \\ (639)/(80)=x \\ \\ x\approx7.99 \end{gathered}`

Therefore, the answer is:

`7.99\text{ }inches`