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Finding the Fourth Proportional to 8,560.71, 12,843.81 and 3,634.49

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Solution

The fourth proportional to 8,560.71, 12,843.81 and 3,634.49 is: 5,452.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.71 : 12,843.81 = 3,634.49 : x
  2. Step 2: Convert to fraction form
    8,560.71/12,843.81 = 3,634.49/x
  3. Step 3: Cross multiply
    8,560.71x = 12,843.81 × 3,634.49
  4. Step 4: Simplify right side
    8,560.71x = 46,680,731.12
  5. Step 5: Solve for x
    x = 46,680,731.12/8,560.71
  6. Step 6: Final answer
    x = 5,452.90

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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.