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Finding the Fourth Proportional to 28,751.92, 43,135.20 and 10,982.54

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Solution

The fourth proportional to 28,751.92, 43,135.20 and 10,982.54 is: 16,476.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,751.92 : 43,135.20 = 10,982.54 : x
  2. Step 2: Convert to fraction form
    28,751.92/43,135.20 = 10,982.54/x
  3. Step 3: Cross multiply
    28,751.92x = 43,135.20 × 10,982.54
  4. Step 4: Simplify right side
    28,751.92x = 473,734,167.25
  5. Step 5: Solve for x
    x = 473,734,167.25/28,751.92
  6. Step 6: Final answer
    x = 16,476.61

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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.