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Finding the Fourth Proportional to 5,872.59, 8,791.61 and 3,919.95

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Solution

The fourth proportional to 5,872.59, 8,791.61 and 3,919.95 is: 5,868.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.59 : 8,791.61 = 3,919.95 : x
  2. Step 2: Convert to fraction form
    5,872.59/8,791.61 = 3,919.95/x
  3. Step 3: Cross multiply
    5,872.59x = 8,791.61 × 3,919.95
  4. Step 4: Simplify right side
    5,872.59x = 34,462,652.02
  5. Step 5: Solve for x
    x = 34,462,652.02/5,872.59
  6. Step 6: Final answer
    x = 5,868.39

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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.