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Finding the Fourth Proportional to 57,599.75, 86,331.74 and 25,972.78

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Solution

The fourth proportional to 57,599.75, 86,331.74 and 25,972.78 is: 38,928.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,599.75 : 86,331.74 = 25,972.78 : x
  2. Step 2: Convert to fraction form
    57,599.75/86,331.74 = 25,972.78/x
  3. Step 3: Cross multiply
    57,599.75x = 86,331.74 × 25,972.78
  4. Step 4: Simplify right side
    57,599.75x = 2,242,275,610.61
  5. Step 5: Solve for x
    x = 2,242,275,610.61/57,599.75
  6. Step 6: Final answer
    x = 38,928.56

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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.