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Finding the Fourth Proportional to 8,458.27, 12,668.82 and 6,974.10

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Solution

The fourth proportional to 8,458.27, 12,668.82 and 6,974.10 is: 10,445.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.27 : 12,668.82 = 6,974.10 : x
  2. Step 2: Convert to fraction form
    8,458.27/12,668.82 = 6,974.10/x
  3. Step 3: Cross multiply
    8,458.27x = 12,668.82 × 6,974.10
  4. Step 4: Simplify right side
    8,458.27x = 88,353,617.56
  5. Step 5: Solve for x
    x = 88,353,617.56/8,458.27
  6. Step 6: Final answer
    x = 10,445.83

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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.