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Finding the Fourth Proportional to 8,463.48, 12,694.80 and 3,198.48

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Solution

The fourth proportional to 8,463.48, 12,694.80 and 3,198.48 is: 4,797.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,463.48 : 12,694.80 = 3,198.48 : x
  2. Step 2: Convert to fraction form
    8,463.48/12,694.80 = 3,198.48/x
  3. Step 3: Cross multiply
    8,463.48x = 12,694.80 × 3,198.48
  4. Step 4: Simplify right side
    8,463.48x = 40,604,063.90
  5. Step 5: Solve for x
    x = 40,604,063.90/8,463.48
  6. Step 6: Final answer
    x = 4,797.56

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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.