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Finding the Fourth Proportional to 11,372.52, 17,062.02 and 8,255.64

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Solution

The fourth proportional to 11,372.52, 17,062.02 and 8,255.64 is: 12,385.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,372.52 : 17,062.02 = 8,255.64 : x
  2. Step 2: Convert to fraction form
    11,372.52/17,062.02 = 8,255.64/x
  3. Step 3: Cross multiply
    11,372.52x = 17,062.02 × 8,255.64
  4. Step 4: Simplify right side
    11,372.52x = 140,857,894.79
  5. Step 5: Solve for x
    x = 140,857,894.79/11,372.52
  6. Step 6: Final answer
    x = 12,385.81

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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.