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Finding the Third Proportional to 31,558 and 48,864

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Solution

The third proportional to 31,558 and 48,864 is: 75,660.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,558 : 48,864 = 48,864 : x
  2. Step 2: Convert to fraction form
    31,558/48,864 = 48,864/x
  3. Step 3: Cross multiply
    31,558x = 48,864 × 48,864
  4. Step 4: Simplify right side
    31,558x = 2,387,690,496
  5. Step 5: Solve for x
    x = 2,387,690,496/31,558
  6. Step 6: Final answer
    x = 75,660.39

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.