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Finding the Fourth Proportional to 22,479.71, 33,723.18 and 8,440.83

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Solution

The fourth proportional to 22,479.71, 33,723.18 and 8,440.83 is: 12,662.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,479.71 : 33,723.18 = 8,440.83 : x
  2. Step 2: Convert to fraction form
    22,479.71/33,723.18 = 8,440.83/x
  3. Step 3: Cross multiply
    22,479.71x = 33,723.18 × 8,440.83
  4. Step 4: Simplify right side
    22,479.71x = 284,651,629.44
  5. Step 5: Solve for x
    x = 284,651,629.44/22,479.71
  6. Step 6: Final answer
    x = 12,662.61

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1.5x scale

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.