# Chapter 2 - Solving Equations - 2-8 Proportions and Similar Figures - Practice and Problem-Solving Exercises: 12

The length of the bridge will be 48 yards.

#### Work Step by Step

The two triangles are similar triangles. This means that all of the sides are proportional. We will call x the side that we want to find (the length of the bridge). Thus, we set up the equation: $x/20=120/50$. We multiply both sides of the equation by 20 to obtain that x=48.

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