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Finding the Fourth Proportional to 57,818.68, 86,589.42 and 29,664.64

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Solution

The fourth proportional to 57,818.68, 86,589.42 and 29,664.64 is: 44,425.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,818.68 : 86,589.42 = 29,664.64 : x
  2. Step 2: Convert to fraction form
    57,818.68/86,589.42 = 29,664.64/x
  3. Step 3: Cross multiply
    57,818.68x = 86,589.42 × 29,664.64
  4. Step 4: Simplify right side
    57,818.68x = 2,568,643,972.11
  5. Step 5: Solve for x
    x = 2,568,643,972.11/57,818.68
  6. Step 6: Final answer
    x = 44,425.85

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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.