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Finding the Fourth Proportional to 22,489.35, 33,734.03 and 12,628.41

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Solution

The fourth proportional to 22,489.35, 33,734.03 and 12,628.41 is: 18,942.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,489.35 : 33,734.03 = 12,628.41 : x
  2. Step 2: Convert to fraction form
    22,489.35/33,734.03 = 12,628.41/x
  3. Step 3: Cross multiply
    22,489.35x = 33,734.03 × 12,628.41
  4. Step 4: Simplify right side
    22,489.35x = 426,007,098.65
  5. Step 5: Solve for x
    x = 426,007,098.65/22,489.35
  6. Step 6: Final answer
    x = 18,942.62

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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.