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Finding the Third Proportional to 63,612 and 84,108

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Solution

The third proportional to 63,612 and 84,108 is: 111,207.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,612 : 84,108 = 84,108 : x
  2. Step 2: Convert to fraction form
    63,612/84,108 = 84,108/x
  3. Step 3: Cross multiply
    63,612x = 84,108 × 84,108
  4. Step 4: Simplify right side
    63,612x = 7,074,155,664
  5. Step 5: Solve for x
    x = 7,074,155,664/63,612
  6. Step 6: Final answer
    x = 111,207.88

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.