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Finding the Fourth Proportional to 8,198.85, 12,295.25 and 2,932.44

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Solution

The fourth proportional to 8,198.85, 12,295.25 and 2,932.44 is: 4,397.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198.85 : 12,295.25 = 2,932.44 : x
  2. Step 2: Convert to fraction form
    8,198.85/12,295.25 = 2,932.44/x
  3. Step 3: Cross multiply
    8,198.85x = 12,295.25 × 2,932.44
  4. Step 4: Simplify right side
    8,198.85x = 36,055,082.91
  5. Step 5: Solve for x
    x = 36,055,082.91/8,198.85
  6. Step 6: Final answer
    x = 4,397.58

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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.