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Finding the Third Proportional to 61,239.38 and 89,763.19

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Solution

The third proportional to 61,239.38 and 89,763.19 is: 131,572.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,239.38 : 89,763.19 = 89,763.19 : x
  2. Step 2: Convert to fraction form
    61,239.38/89,763.19 = 89,763.19/x
  3. Step 3: Cross multiply
    61,239.38x = 89,763.19 × 89,763.19
  4. Step 4: Simplify right side
    61,239.38x = 8,057,429,830.16
  5. Step 5: Solve for x
    x = 8,057,429,830.16/61,239.38
  6. Step 6: Final answer
    x = 131,572.70

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.