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Finding the Fourth Proportional to 8,141.66, 12,211.12 and 3,697.94

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Solution

The fourth proportional to 8,141.66, 12,211.12 and 3,697.94 is: 5,546.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,141.66 : 12,211.12 = 3,697.94 : x
  2. Step 2: Convert to fraction form
    8,141.66/12,211.12 = 3,697.94/x
  3. Step 3: Cross multiply
    8,141.66x = 12,211.12 × 3,697.94
  4. Step 4: Simplify right side
    8,141.66x = 45,156,010.38
  5. Step 5: Solve for x
    x = 45,156,010.38/8,141.66
  6. Step 6: Final answer
    x = 5,546.29

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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.