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Finding the Fourth Proportional to 29,149.92, 43,727.76 and 8,376.48

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Solution

The fourth proportional to 29,149.92, 43,727.76 and 8,376.48 is: 12,565.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,149.92 : 43,727.76 = 8,376.48 : x
  2. Step 2: Convert to fraction form
    29,149.92/43,727.76 = 8,376.48/x
  3. Step 3: Cross multiply
    29,149.92x = 43,727.76 × 8,376.48
  4. Step 4: Simplify right side
    29,149.92x = 366,284,707.08
  5. Step 5: Solve for x
    x = 366,284,707.08/29,149.92
  6. Step 6: Final answer
    x = 12,565.55

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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.