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Finding the Fourth Proportional to 5,863.61, 8,791.29 and 2,939.91

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Solution

The fourth proportional to 5,863.61, 8,791.29 and 2,939.91 is: 4,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,863.61 : 8,791.29 = 2,939.91 : x
  2. Step 2: Convert to fraction form
    5,863.61/8,791.29 = 2,939.91/x
  3. Step 3: Cross multiply
    5,863.61x = 8,791.29 × 2,939.91
  4. Step 4: Simplify right side
    5,863.61x = 25,845,601.38
  5. Step 5: Solve for x
    x = 25,845,601.38/5,863.61
  6. Step 6: Final answer
    x = 4,407.80

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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.