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Finding the Fourth Proportional to 16,487.60, 24,734.86 and 5,393.43

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Solution

The fourth proportional to 16,487.60, 24,734.86 and 5,393.43 is: 8,091.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,487.60 : 24,734.86 = 5,393.43 : x
  2. Step 2: Convert to fraction form
    16,487.60/24,734.86 = 5,393.43/x
  3. Step 3: Cross multiply
    16,487.60x = 24,734.86 × 5,393.43
  4. Step 4: Simplify right side
    16,487.60x = 133,405,735.97
  5. Step 5: Solve for x
    x = 133,405,735.97/16,487.60
  6. Step 6: Final answer
    x = 8,091.28

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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.