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Finding the Fourth Proportional to 38,491.88, 57,737.02 and 10,789.16

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Solution

The fourth proportional to 38,491.88, 57,737.02 and 10,789.16 is: 16,183.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,491.88 : 57,737.02 = 10,789.16 : x
  2. Step 2: Convert to fraction form
    38,491.88/57,737.02 = 10,789.16/x
  3. Step 3: Cross multiply
    38,491.88x = 57,737.02 × 10,789.16
  4. Step 4: Simplify right side
    38,491.88x = 622,933,946.70
  5. Step 5: Solve for x
    x = 622,933,946.70/38,491.88
  6. Step 6: Final answer
    x = 16,183.52

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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.