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Finding the Fourth Proportional to 43,761.87, 65,648.88 and 14,170.14

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Solution

The fourth proportional to 43,761.87, 65,648.88 and 14,170.14 is: 21,257.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,761.87 : 65,648.88 = 14,170.14 : x
  2. Step 2: Convert to fraction form
    43,761.87/65,648.88 = 14,170.14/x
  3. Step 3: Cross multiply
    43,761.87x = 65,648.88 × 14,170.14
  4. Step 4: Simplify right side
    43,761.87x = 930,253,820.44
  5. Step 5: Solve for x
    x = 930,253,820.44/43,761.87
  6. Step 6: Final answer
    x = 21,257.18

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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.