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Finding the Third Proportional to 39,116.50 and 84,469

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Solution

The third proportional to 39,116.50 and 84,469 is: 182,404.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,116.50 : 84,469 = 84,469 : x
  2. Step 2: Convert to fraction form
    39,116.50/84,469 = 84,469/x
  3. Step 3: Cross multiply
    39,116.50x = 84,469 × 84,469
  4. Step 4: Simplify right side
    39,116.50x = 7,135,011,961
  5. Step 5: Solve for x
    x = 7,135,011,961/39,116.50
  6. Step 6: Final answer
    x = 182,404.15

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.