Example 1:
Solve for x in the following proportion.
5 / 9 = x / 81
Here is one way to find the solution to this problem:
Step 1: We begin by setting up our problem using cross multiplication.
5 * 81 = x * 9
Step 2: Next, we need to find the missing value, x, by getting it by itself on one side of the equation.
405 = 9x 405/9 = 9x / 9 45 = x
Example 2 >>
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