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Finding the Fourth Proportional to 6,243.92, 8,617.20 and 3,449.42

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Solution

The fourth proportional to 6,243.92, 8,617.20 and 3,449.42 is: 4,760.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,243.92 : 8,617.20 = 3,449.42 : x
  2. Step 2: Convert to fraction form
    6,243.92/8,617.20 = 3,449.42/x
  3. Step 3: Cross multiply
    6,243.92x = 8,617.20 × 3,449.42
  4. Step 4: Simplify right side
    6,243.92x = 29,724,342.02
  5. Step 5: Solve for x
    x = 29,724,342.02/6,243.92
  6. Step 6: Final answer
    x = 4,760.53

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1.5x scale

Why These Related Problems?

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