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Finding the Fourth Proportional to 6,604.96, 9,908.76 and 2,163.88

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Solution

The fourth proportional to 6,604.96, 9,908.76 and 2,163.88 is: 3,246.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,604.96 : 9,908.76 = 2,163.88 : x
  2. Step 2: Convert to fraction form
    6,604.96/9,908.76 = 2,163.88/x
  3. Step 3: Cross multiply
    6,604.96x = 9,908.76 × 2,163.88
  4. Step 4: Simplify right side
    6,604.96x = 21,441,367.59
  5. Step 5: Solve for x
    x = 21,441,367.59/6,604.96
  6. Step 6: Final answer
    x = 3,246.25

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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.