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Finding the Fourth Proportional to 9,939.92, 14,912.61 and 3,366.61

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Solution

The fourth proportional to 9,939.92, 14,912.61 and 3,366.61 is: 5,050.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.92 : 14,912.61 = 3,366.61 : x
  2. Step 2: Convert to fraction form
    9,939.92/14,912.61 = 3,366.61/x
  3. Step 3: Cross multiply
    9,939.92x = 14,912.61 × 3,366.61
  4. Step 4: Simplify right side
    9,939.92x = 50,204,975.93
  5. Step 5: Solve for x
    x = 50,204,975.93/9,939.92
  6. Step 6: Final answer
    x = 5,050.85

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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.