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Finding the Fourth Proportional to 40,691.52, 60,918.72 and 25,061.76

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Solution

The fourth proportional to 40,691.52, 60,918.72 and 25,061.76 is: 37,519.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,691.52 : 60,918.72 = 25,061.76 : x
  2. Step 2: Convert to fraction form
    40,691.52/60,918.72 = 25,061.76/x
  3. Step 3: Cross multiply
    40,691.52x = 60,918.72 × 25,061.76
  4. Step 4: Simplify right side
    40,691.52x = 1,526,730,340.15
  5. Step 5: Solve for x
    x = 1,526,730,340.15/40,691.52
  6. Step 6: Final answer
    x = 37,519.62

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1.5x scale

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.