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Finding the Fourth Proportional to 43,672.33, 65,522.33 and 15,591.78

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Solution

The fourth proportional to 43,672.33, 65,522.33 and 15,591.78 is: 23,392.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,672.33 : 65,522.33 = 15,591.78 : x
  2. Step 2: Convert to fraction form
    43,672.33/65,522.33 = 15,591.78/x
  3. Step 3: Cross multiply
    43,672.33x = 65,522.33 × 15,591.78
  4. Step 4: Simplify right side
    43,672.33x = 1,021,609,822.66
  5. Step 5: Solve for x
    x = 1,021,609,822.66/43,672.33
  6. Step 6: Final answer
    x = 23,392.61

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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.