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Finding the Fourth Proportional to 57,424.87, 86,143.79 and 26,251.75

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Solution

The fourth proportional to 57,424.87, 86,143.79 and 26,251.75 is: 39,380.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,424.87 : 86,143.79 = 26,251.75 : x
  2. Step 2: Convert to fraction form
    57,424.87/86,143.79 = 26,251.75/x
  3. Step 3: Cross multiply
    57,424.87x = 86,143.79 × 26,251.75
  4. Step 4: Simplify right side
    57,424.87x = 2,261,425,239.13
  5. Step 5: Solve for x
    x = 2,261,425,239.13/57,424.87
  6. Step 6: Final answer
    x = 39,380.59

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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.