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Finding the Fourth Proportional to 39,151.76, 58,737.29 and 11,449.76

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Solution

The fourth proportional to 39,151.76, 58,737.29 and 11,449.76 is: 17,177.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,151.76 : 58,737.29 = 11,449.76 : x
  2. Step 2: Convert to fraction form
    39,151.76/58,737.29 = 11,449.76/x
  3. Step 3: Cross multiply
    39,151.76x = 58,737.29 × 11,449.76
  4. Step 4: Simplify right side
    39,151.76x = 672,527,522.62
  5. Step 5: Solve for x
    x = 672,527,522.62/39,151.76
  6. Step 6: Final answer
    x = 17,177.46

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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.