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Finding the Fourth Proportional to 5,251.86, 7,247.58 and 2,861.85

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Solution

The fourth proportional to 5,251.86, 7,247.58 and 2,861.85 is: 3,949.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.86 : 7,247.58 = 2,861.85 : x
  2. Step 2: Convert to fraction form
    5,251.86/7,247.58 = 2,861.85/x
  3. Step 3: Cross multiply
    5,251.86x = 7,247.58 × 2,861.85
  4. Step 4: Simplify right side
    5,251.86x = 20,741,486.82
  5. Step 5: Solve for x
    x = 20,741,486.82/5,251.86
  6. Step 6: Final answer
    x = 3,949.36

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.