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Finding the Fourth Proportional to 60,337.31, 90,507.11 and 20,895.71

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Solution

The fourth proportional to 60,337.31, 90,507.11 and 20,895.71 is: 31,343.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,337.31 : 90,507.11 = 20,895.71 : x
  2. Step 2: Convert to fraction form
    60,337.31/90,507.11 = 20,895.71/x
  3. Step 3: Cross multiply
    60,337.31x = 90,507.11 × 20,895.71
  4. Step 4: Simplify right side
    60,337.31x = 1,891,209,766.48
  5. Step 5: Solve for x
    x = 1,891,209,766.48/60,337.31
  6. Step 6: Final answer
    x = 31,343.95

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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.