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Finding the Fourth Proportional to 11,568.02, 15,964.02 and 6,791.55

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Solution

The fourth proportional to 11,568.02, 15,964.02 and 6,791.55 is: 9,372.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,568.02 : 15,964.02 = 6,791.55 : x
  2. Step 2: Convert to fraction form
    11,568.02/15,964.02 = 6,791.55/x
  3. Step 3: Cross multiply
    11,568.02x = 15,964.02 × 6,791.55
  4. Step 4: Simplify right side
    11,568.02x = 108,420,380.17
  5. Step 5: Solve for x
    x = 108,420,380.17/11,568.02
  6. Step 6: Final answer
    x = 9,372.43

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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.