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Finding the Fourth Proportional to 43,560.88, 65,335.17 and 13,974.87

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Solution

The fourth proportional to 43,560.88, 65,335.17 and 13,974.87 is: 20,960.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,560.88 : 65,335.17 = 13,974.87 : x
  2. Step 2: Convert to fraction form
    43,560.88/65,335.17 = 13,974.87/x
  3. Step 3: Cross multiply
    43,560.88x = 65,335.17 × 13,974.87
  4. Step 4: Simplify right side
    43,560.88x = 913,050,507.18
  5. Step 5: Solve for x
    x = 913,050,507.18/43,560.88
  6. Step 6: Final answer
    x = 20,960.33

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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.