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Finding the Fourth Proportional to 6,604.40, 9,906.60 and 2,711.60

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Solution

The fourth proportional to 6,604.40, 9,906.60 and 2,711.60 is: 4,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,604.40 : 9,906.60 = 2,711.60 : x
  2. Step 2: Convert to fraction form
    6,604.40/9,906.60 = 2,711.60/x
  3. Step 3: Cross multiply
    6,604.40x = 9,906.60 × 2,711.60
  4. Step 4: Simplify right side
    6,604.40x = 26,862,736.56
  5. Step 5: Solve for x
    x = 26,862,736.56/6,604.40
  6. Step 6: Final answer
    x = 4,067.40

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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.