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Finding the Fourth Proportional to 9,125.52, 12,600.89 and 6,151.20

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Solution

The fourth proportional to 9,125.52, 12,600.89 and 6,151.20 is: 8,493.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.52 : 12,600.89 = 6,151.20 : x
  2. Step 2: Convert to fraction form
    9,125.52/12,600.89 = 6,151.20/x
  3. Step 3: Cross multiply
    9,125.52x = 12,600.89 × 6,151.20
  4. Step 4: Simplify right side
    9,125.52x = 77,510,594.57
  5. Step 5: Solve for x
    x = 77,510,594.57/9,125.52
  6. Step 6: Final answer
    x = 8,493.83

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1.5x scale

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.