Finding the Third Proportional to 31,938 and 69,474
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Solution
The third proportional to 31,938 and 69,474 is: 151,125.20
Step by Step Solution
- Step 1: Write the proportion equation
31,938 : 69,474 = 69,474 : x - Step 2: Convert to fraction form
31,938/69,474 = 69,474/x - Step 3: Cross multiply
31,938x = 69,474 × 69,474 - Step 4: Simplify right side
31,938x = 4,826,636,676 - Step 5: Solve for x
x = 4,826,636,676/31,938 - Step 6: Final answer
x = 151,125.20
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Why These Related Problems?
These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.