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Finding the Fourth Proportional to 6,576.72, 9,868.32 and 2,679

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Solution

The fourth proportional to 6,576.72, 9,868.32 and 2,679 is: 4,019.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,576.72 : 9,868.32 = 2,679 : x
  2. Step 2: Convert to fraction form
    6,576.72/9,868.32 = 2,679/x
  3. Step 3: Cross multiply
    6,576.72x = 9,868.32 × 2,679
  4. Step 4: Simplify right side
    6,576.72x = 26,437,229.28
  5. Step 5: Solve for x
    x = 26,437,229.28/6,576.72
  6. Step 6: Final answer
    x = 4,019.82

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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.