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Finding the Third Proportional to 61,612 and 92,691

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Solution

The third proportional to 61,612 and 92,691 is: 139,447.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,612 : 92,691 = 92,691 : x
  2. Step 2: Convert to fraction form
    61,612/92,691 = 92,691/x
  3. Step 3: Cross multiply
    61,612x = 92,691 × 92,691
  4. Step 4: Simplify right side
    61,612x = 8,591,621,481
  5. Step 5: Solve for x
    x = 8,591,621,481/61,612
  6. Step 6: Final answer
    x = 139,447.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.