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Finding the Fourth Proportional to 32,169.78, 48,274.56 and 15,531.48

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Solution

The fourth proportional to 32,169.78, 48,274.56 and 15,531.48 is: 23,306.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,169.78 : 48,274.56 = 15,531.48 : x
  2. Step 2: Convert to fraction form
    32,169.78/48,274.56 = 15,531.48/x
  3. Step 3: Cross multiply
    32,169.78x = 48,274.56 × 15,531.48
  4. Step 4: Simplify right side
    32,169.78x = 749,775,363.15
  5. Step 5: Solve for x
    x = 749,775,363.15/32,169.78
  6. Step 6: Final answer
    x = 23,306.82

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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.