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Finding the Fourth Proportional to 8,479.44, 12,717.72 and 2,322

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Solution

The fourth proportional to 8,479.44, 12,717.72 and 2,322 is: 3,482.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.44 : 12,717.72 = 2,322 : x
  2. Step 2: Convert to fraction form
    8,479.44/12,717.72 = 2,322/x
  3. Step 3: Cross multiply
    8,479.44x = 12,717.72 × 2,322
  4. Step 4: Simplify right side
    8,479.44x = 29,530,545.84
  5. Step 5: Solve for x
    x = 29,530,545.84/8,479.44
  6. Step 6: Final answer
    x = 3,482.61

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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.