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Finding the Fourth Proportional to 62,478, 93,717.12 and 25,542

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Solution

The fourth proportional to 62,478, 93,717.12 and 25,542 is: 38,313.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,478 : 93,717.12 = 25,542 : x
  2. Step 2: Convert to fraction form
    62,478/93,717.12 = 25,542/x
  3. Step 3: Cross multiply
    62,478x = 93,717.12 × 25,542
  4. Step 4: Simplify right side
    62,478x = 2,393,722,679.04
  5. Step 5: Solve for x
    x = 2,393,722,679.04/62,478
  6. Step 6: Final answer
    x = 38,313.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.