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Finding the Fourth Proportional to 62,874.90, 94,323.99 and 20,757.92

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Solution

The fourth proportional to 62,874.90, 94,323.99 and 20,757.92 is: 31,140.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,874.90 : 94,323.99 = 20,757.92 : x
  2. Step 2: Convert to fraction form
    62,874.90/94,323.99 = 20,757.92/x
  3. Step 3: Cross multiply
    62,874.90x = 94,323.99 × 20,757.92
  4. Step 4: Simplify right side
    62,874.90x = 1,957,969,366.88
  5. Step 5: Solve for x
    x = 1,957,969,366.88/62,874.90
  6. Step 6: Final answer
    x = 31,140.72

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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.