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Finding the Fourth Proportional to 6,247.12, 8,620.95 and 3,414.48

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Solution

The fourth proportional to 6,247.12, 8,620.95 and 3,414.48 is: 4,711.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,247.12 : 8,620.95 = 3,414.48 : x
  2. Step 2: Convert to fraction form
    6,247.12/8,620.95 = 3,414.48/x
  3. Step 3: Cross multiply
    6,247.12x = 8,620.95 × 3,414.48
  4. Step 4: Simplify right side
    6,247.12x = 29,436,061.36
  5. Step 5: Solve for x
    x = 29,436,061.36/6,247.12
  6. Step 6: Final answer
    x = 4,711.94

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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.