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Finding the Fourth Proportional to 6,469.20, 8,926.01 and 4,679.31

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Solution

The fourth proportional to 6,469.20, 8,926.01 and 4,679.31 is: 6,456.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,469.20 : 8,926.01 = 4,679.31 : x
  2. Step 2: Convert to fraction form
    6,469.20/8,926.01 = 4,679.31/x
  3. Step 3: Cross multiply
    6,469.20x = 8,926.01 × 4,679.31
  4. Step 4: Simplify right side
    6,469.20x = 41,767,567.85
  5. Step 5: Solve for x
    x = 41,767,567.85/6,469.20
  6. Step 6: Final answer
    x = 6,456.37

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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.