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Finding the Fourth Proportional to 57,474.95, 86,211.42 and 25,862.64

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Solution

The fourth proportional to 57,474.95, 86,211.42 and 25,862.64 is: 38,793.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,474.95 : 86,211.42 = 25,862.64 : x
  2. Step 2: Convert to fraction form
    57,474.95/86,211.42 = 25,862.64/x
  3. Step 3: Cross multiply
    57,474.95x = 86,211.42 × 25,862.64
  4. Step 4: Simplify right side
    57,474.95x = 2,229,654,644.55
  5. Step 5: Solve for x
    x = 2,229,654,644.55/57,474.95
  6. Step 6: Final answer
    x = 38,793.51

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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.