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Finding the Fourth Proportional to 38,896.70, 58,373.85 and 15,539.90

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Solution

The fourth proportional to 38,896.70, 58,373.85 and 15,539.90 is: 23,321.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,896.70 : 58,373.85 = 15,539.90 : x
  2. Step 2: Convert to fraction form
    38,896.70/58,373.85 = 15,539.90/x
  3. Step 3: Cross multiply
    38,896.70x = 58,373.85 × 15,539.90
  4. Step 4: Simplify right side
    38,896.70x = 907,123,791.62
  5. Step 5: Solve for x
    x = 907,123,791.62/38,896.70
  6. Step 6: Final answer
    x = 23,321.36

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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.