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Finding the Fourth Proportional to 12,198.66, 16,834.14 and 6,609.66

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Solution

The fourth proportional to 12,198.66, 16,834.14 and 6,609.66 is: 9,121.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.66 : 16,834.14 = 6,609.66 : x
  2. Step 2: Convert to fraction form
    12,198.66/16,834.14 = 6,609.66/x
  3. Step 3: Cross multiply
    12,198.66x = 16,834.14 × 6,609.66
  4. Step 4: Simplify right side
    12,198.66x = 111,267,941.79
  5. Step 5: Solve for x
    x = 111,267,941.79/12,198.66
  6. Step 6: Final answer
    x = 9,121.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.