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Finding the Fourth Proportional to 5,771.88, 8,651.34 and 2,486.52

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Solution

The fourth proportional to 5,771.88, 8,651.34 and 2,486.52 is: 3,726.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,771.88 : 8,651.34 = 2,486.52 : x
  2. Step 2: Convert to fraction form
    5,771.88/8,651.34 = 2,486.52/x
  3. Step 3: Cross multiply
    5,771.88x = 8,651.34 × 2,486.52
  4. Step 4: Simplify right side
    5,771.88x = 21,511,729.94
  5. Step 5: Solve for x
    x = 21,511,729.94/5,771.88
  6. Step 6: Final answer
    x = 3,726.99

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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.