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Finding the Third Proportional to 39,834 and 54,132

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Solution

The third proportional to 39,834 and 54,132 is: 73,562.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,834 : 54,132 = 54,132 : x
  2. Step 2: Convert to fraction form
    39,834/54,132 = 54,132/x
  3. Step 3: Cross multiply
    39,834x = 54,132 × 54,132
  4. Step 4: Simplify right side
    39,834x = 2,930,273,424
  5. Step 5: Solve for x
    x = 2,930,273,424/39,834
  6. Step 6: Final answer
    x = 73,562.12

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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.