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Finding the Fourth Proportional to 57,515.56, 86,272.84 and 15,962.56

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Solution

The fourth proportional to 57,515.56, 86,272.84 and 15,962.56 is: 23,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,515.56 : 86,272.84 = 15,962.56 : x
  2. Step 2: Convert to fraction form
    57,515.56/86,272.84 = 15,962.56/x
  3. Step 3: Cross multiply
    57,515.56x = 86,272.84 × 15,962.56
  4. Step 4: Simplify right side
    57,515.56x = 1,377,135,384.87
  5. Step 5: Solve for x
    x = 1,377,135,384.87/57,515.56
  6. Step 6: Final answer
    x = 23,943.70

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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.