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Finding the Fourth Proportional to 5,565.24, 7,679.88 and 3,207.24

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Solution

The fourth proportional to 5,565.24, 7,679.88 and 3,207.24 is: 4,425.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,565.24 : 7,679.88 = 3,207.24 : x
  2. Step 2: Convert to fraction form
    5,565.24/7,679.88 = 3,207.24/x
  3. Step 3: Cross multiply
    5,565.24x = 7,679.88 × 3,207.24
  4. Step 4: Simplify right side
    5,565.24x = 24,631,218.33
  5. Step 5: Solve for x
    x = 24,631,218.33/5,565.24
  6. Step 6: Final answer
    x = 4,425.90

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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.