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Finding the Fourth Proportional to 8,245.80, 11,379.17 and 4,469.06

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Solution

The fourth proportional to 8,245.80, 11,379.17 and 4,469.06 is: 6,167.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.80 : 11,379.17 = 4,469.06 : x
  2. Step 2: Convert to fraction form
    8,245.80/11,379.17 = 4,469.06/x
  3. Step 3: Cross multiply
    8,245.80x = 11,379.17 × 4,469.06
  4. Step 4: Simplify right side
    8,245.80x = 50,854,114.24
  5. Step 5: Solve for x
    x = 50,854,114.24/8,245.80
  6. Step 6: Final answer
    x = 6,167.27

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1.5x scale

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.