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Finding the Fourth Proportional to 6,379.72, 9,544.95 and 6,363.31

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Solution

The fourth proportional to 6,379.72, 9,544.95 and 6,363.31 is: 9,520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,379.72 : 9,544.95 = 6,363.31 : x
  2. Step 2: Convert to fraction form
    6,379.72/9,544.95 = 6,363.31/x
  3. Step 3: Cross multiply
    6,379.72x = 9,544.95 × 6,363.31
  4. Step 4: Simplify right side
    6,379.72x = 60,737,475.78
  5. Step 5: Solve for x
    x = 60,737,475.78/6,379.72
  6. Step 6: Final answer
    x = 9,520.40

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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.