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Finding the Fourth Proportional to 8,446.67, 12,671.39 and 3,516.65

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Solution

The fourth proportional to 8,446.67, 12,671.39 and 3,516.65 is: 5,275.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,446.67 : 12,671.39 = 3,516.65 : x
  2. Step 2: Convert to fraction form
    8,446.67/12,671.39 = 3,516.65/x
  3. Step 3: Cross multiply
    8,446.67x = 12,671.39 × 3,516.65
  4. Step 4: Simplify right side
    8,446.67x = 44,560,843.64
  5. Step 5: Solve for x
    x = 44,560,843.64/8,446.67
  6. Step 6: Final answer
    x = 5,275.55

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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.