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Finding the Fourth Proportional to 8,141.10, 12,211.65 and 7,233.90

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Solution

The fourth proportional to 8,141.10, 12,211.65 and 7,233.90 is: 10,850.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,141.10 : 12,211.65 = 7,233.90 : x
  2. Step 2: Convert to fraction form
    8,141.10/12,211.65 = 7,233.90/x
  3. Step 3: Cross multiply
    8,141.10x = 12,211.65 × 7,233.90
  4. Step 4: Simplify right side
    8,141.10x = 88,337,854.94
  5. Step 5: Solve for x
    x = 88,337,854.94/8,141.10
  6. Step 6: Final answer
    x = 10,850.85

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Double scale
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Similar ratio
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1.5x scale

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.