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Finding the Fourth Proportional to 5,791.19, 8,679.83 and 2,666.90

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Solution

The fourth proportional to 5,791.19, 8,679.83 and 2,666.90 is: 3,997.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.19 : 8,679.83 = 2,666.90 : x
  2. Step 2: Convert to fraction form
    5,791.19/8,679.83 = 2,666.90/x
  3. Step 3: Cross multiply
    5,791.19x = 8,679.83 × 2,666.90
  4. Step 4: Simplify right side
    5,791.19x = 23,148,246.99
  5. Step 5: Solve for x
    x = 23,148,246.99/5,791.19
  6. Step 6: Final answer
    x = 3,997.15

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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.