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Finding the Fourth Proportional to 28,793.88, 39,737.55 and 17,463.86

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Solution

The fourth proportional to 28,793.88, 39,737.55 and 17,463.86 is: 24,101.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.88 : 39,737.55 = 17,463.86 : x
  2. Step 2: Convert to fraction form
    28,793.88/39,737.55 = 17,463.86/x
  3. Step 3: Cross multiply
    28,793.88x = 39,737.55 × 17,463.86
  4. Step 4: Simplify right side
    28,793.88x = 693,970,811.26
  5. Step 5: Solve for x
    x = 693,970,811.26/28,793.88
  6. Step 6: Final answer
    x = 24,101.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.