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Finding the Fourth Proportional to 3,895.62, 5,371.92 and 2,567.64

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Solution

The fourth proportional to 3,895.62, 5,371.92 and 2,567.64 is: 3,540.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.62 : 5,371.92 = 2,567.64 : x
  2. Step 2: Convert to fraction form
    3,895.62/5,371.92 = 2,567.64/x
  3. Step 3: Cross multiply
    3,895.62x = 5,371.92 × 2,567.64
  4. Step 4: Simplify right side
    3,895.62x = 13,793,156.67
  5. Step 5: Solve for x
    x = 13,793,156.67/3,895.62
  6. Step 6: Final answer
    x = 3,540.68

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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.