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Finding the Fourth Proportional to 3,668.95, 5,067.30 and 2,487.97

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Solution

The fourth proportional to 3,668.95, 5,067.30 and 2,487.97 is: 3,436.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.95 : 5,067.30 = 2,487.97 : x
  2. Step 2: Convert to fraction form
    3,668.95/5,067.30 = 2,487.97/x
  3. Step 3: Cross multiply
    3,668.95x = 5,067.30 × 2,487.97
  4. Step 4: Simplify right side
    3,668.95x = 12,607,290.38
  5. Step 5: Solve for x
    x = 12,607,290.38/3,668.95
  6. Step 6: Final answer
    x = 3,436.21

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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.