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Finding the Fourth Proportional to 8,560.95, 12,841.31 and 2,717.61

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Solution

The fourth proportional to 8,560.95, 12,841.31 and 2,717.61 is: 4,076.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.95 : 12,841.31 = 2,717.61 : x
  2. Step 2: Convert to fraction form
    8,560.95/12,841.31 = 2,717.61/x
  3. Step 3: Cross multiply
    8,560.95x = 12,841.31 × 2,717.61
  4. Step 4: Simplify right side
    8,560.95x = 34,897,658.88
  5. Step 5: Solve for x
    x = 34,897,658.88/8,560.95
  6. Step 6: Final answer
    x = 4,076.38

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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.