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Finding the Third Proportional to 63,632 and 86,376

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Solution

The third proportional to 63,632 and 86,376 is: 117,249.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,632 : 86,376 = 86,376 : x
  2. Step 2: Convert to fraction form
    63,632/86,376 = 86,376/x
  3. Step 3: Cross multiply
    63,632x = 86,376 × 86,376
  4. Step 4: Simplify right side
    63,632x = 7,460,813,376
  5. Step 5: Solve for x
    x = 7,460,813,376/63,632
  6. Step 6: Final answer
    x = 117,249.39

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.