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Finding the Fourth Proportional to 11,067.70, 16,601.55 and 9,974.20

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Solution

The fourth proportional to 11,067.70, 16,601.55 and 9,974.20 is: 14,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,067.70 : 16,601.55 = 9,974.20 : x
  2. Step 2: Convert to fraction form
    11,067.70/16,601.55 = 9,974.20/x
  3. Step 3: Cross multiply
    11,067.70x = 16,601.55 × 9,974.20
  4. Step 4: Simplify right side
    11,067.70x = 165,587,180.01
  5. Step 5: Solve for x
    x = 165,587,180.01/11,067.70
  6. Step 6: Final answer
    x = 14,961.30

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Similar ratio
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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.