Finding the Third Proportional to 81,389.50 and 126,008
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Solution
The third proportional to 81,389.50 and 126,008 is: 195,086.79
Step by Step Solution
- Step 1: Write the proportion equation
81,389.50 : 126,008 = 126,008 : x - Step 2: Convert to fraction form
81,389.50/126,008 = 126,008/x - Step 3: Cross multiply
81,389.50x = 126,008 × 126,008 - Step 4: Simplify right side
81,389.50x = 15,878,016,064 - Step 5: Solve for x
x = 15,878,016,064/81,389.50 - Step 6: Final answer
x = 195,086.79
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Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.