Finding the Third Proportional to 74,642 and 115,569
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Solution
The third proportional to 74,642 and 115,569 is: 178,936.71
Step by Step Solution
- Step 1: Write the proportion equation
74,642 : 115,569 = 115,569 : x - Step 2: Convert to fraction form
74,642/115,569 = 115,569/x - Step 3: Cross multiply
74,642x = 115,569 × 115,569 - Step 4: Simplify right side
74,642x = 13,356,193,761 - Step 5: Solve for x
x = 13,356,193,761/74,642 - Step 6: Final answer
x = 178,936.71
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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.