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Finding the Fourth Proportional to 5,861.77, 8,791.89 and 1,478.96

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Solution

The fourth proportional to 5,861.77, 8,791.89 and 1,478.96 is: 2,218.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,861.77 : 8,791.89 = 1,478.96 : x
  2. Step 2: Convert to fraction form
    5,861.77/8,791.89 = 1,478.96/x
  3. Step 3: Cross multiply
    5,861.77x = 8,791.89 × 1,478.96
  4. Step 4: Simplify right side
    5,861.77x = 13,002,845.42
  5. Step 5: Solve for x
    x = 13,002,845.42/5,861.77
  6. Step 6: Final answer
    x = 2,218.25

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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.