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Finding the Fourth Proportional to 8,475.97, 12,713.96 and 3,281.85

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Solution

The fourth proportional to 8,475.97, 12,713.96 and 3,281.85 is: 4,922.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.97 : 12,713.96 = 3,281.85 : x
  2. Step 2: Convert to fraction form
    8,475.97/12,713.96 = 3,281.85/x
  3. Step 3: Cross multiply
    8,475.97x = 12,713.96 × 3,281.85
  4. Step 4: Simplify right side
    8,475.97x = 41,725,229.65
  5. Step 5: Solve for x
    x = 41,725,229.65/8,475.97
  6. Step 6: Final answer
    x = 4,922.77

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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.