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Finding the Fourth Proportional to 6,115.92, 8,439.93 and 3,321.42

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Solution

The fourth proportional to 6,115.92, 8,439.93 and 3,321.42 is: 4,583.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.92 : 8,439.93 = 3,321.42 : x
  2. Step 2: Convert to fraction form
    6,115.92/8,439.93 = 3,321.42/x
  3. Step 3: Cross multiply
    6,115.92x = 8,439.93 × 3,321.42
  4. Step 4: Simplify right side
    6,115.92x = 28,032,552.30
  5. Step 5: Solve for x
    x = 28,032,552.30/6,115.92
  6. Step 6: Final answer
    x = 4,583.54

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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.