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Finding the Fourth Proportional to 56,751.68, 85,180.04 and 28,691.52

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Solution

The fourth proportional to 56,751.68, 85,180.04 and 28,691.52 is: 43,063.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,751.68 : 85,180.04 = 28,691.52 : x
  2. Step 2: Convert to fraction form
    56,751.68/85,180.04 = 28,691.52/x
  3. Step 3: Cross multiply
    56,751.68x = 85,180.04 × 28,691.52
  4. Step 4: Simplify right side
    56,751.68x = 2,443,944,821.26
  5. Step 5: Solve for x
    x = 2,443,944,821.26/56,751.68
  6. Step 6: Final answer
    x = 43,063.83

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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.