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Finding the Fourth Proportional to 9,917.68, 14,863.80 and 4,367.44

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Solution

The fourth proportional to 9,917.68, 14,863.80 and 4,367.44 is: 6,545.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917.68 : 14,863.80 = 4,367.44 : x
  2. Step 2: Convert to fraction form
    9,917.68/14,863.80 = 4,367.44/x
  3. Step 3: Cross multiply
    9,917.68x = 14,863.80 × 4,367.44
  4. Step 4: Simplify right side
    9,917.68x = 64,916,754.67
  5. Step 5: Solve for x
    x = 64,916,754.67/9,917.68
  6. Step 6: Final answer
    x = 6,545.56

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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.