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Finding the Fourth Proportional to 43,374.97, 65,062.92 and 15,289.80

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Solution

The fourth proportional to 43,374.97, 65,062.92 and 15,289.80 is: 22,934.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,374.97 : 65,062.92 = 15,289.80 : x
  2. Step 2: Convert to fraction form
    43,374.97/65,062.92 = 15,289.80/x
  3. Step 3: Cross multiply
    43,374.97x = 65,062.92 × 15,289.80
  4. Step 4: Simplify right side
    43,374.97x = 994,799,034.22
  5. Step 5: Solve for x
    x = 994,799,034.22/43,374.97
  6. Step 6: Final answer
    x = 22,934.86

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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.