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Finding the Fourth Proportional to 57,392.71, 86,094.02 and 15,839.71

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Solution

The fourth proportional to 57,392.71, 86,094.02 and 15,839.71 is: 23,760.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,392.71 : 86,094.02 = 15,839.71 : x
  2. Step 2: Convert to fraction form
    57,392.71/86,094.02 = 15,839.71/x
  3. Step 3: Cross multiply
    57,392.71x = 86,094.02 × 15,839.71
  4. Step 4: Simplify right side
    57,392.71x = 1,363,704,309.53
  5. Step 5: Solve for x
    x = 1,363,704,309.53/57,392.71
  6. Step 6: Final answer
    x = 23,760.93

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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.