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Finding the Fourth Proportional to 40,591.52, 60,893.02 and 12,513.86

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Solution

The fourth proportional to 40,591.52, 60,893.02 and 12,513.86 is: 18,772.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,591.52 : 60,893.02 = 12,513.86 : x
  2. Step 2: Convert to fraction form
    40,591.52/60,893.02 = 12,513.86/x
  3. Step 3: Cross multiply
    40,591.52x = 60,893.02 × 12,513.86
  4. Step 4: Simplify right side
    40,591.52x = 762,006,727.26
  5. Step 5: Solve for x
    x = 762,006,727.26/40,591.52
  6. Step 6: Final answer
    x = 18,772.56

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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.