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Finding the Fourth Proportional to 5,771.67, 8,659.80 and 1,876.11

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Solution

The fourth proportional to 5,771.67, 8,659.80 and 1,876.11 is: 2,814.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,771.67 : 8,659.80 = 1,876.11 : x
  2. Step 2: Convert to fraction form
    5,771.67/8,659.80 = 1,876.11/x
  3. Step 3: Cross multiply
    5,771.67x = 8,659.80 × 1,876.11
  4. Step 4: Simplify right side
    5,771.67x = 16,246,737.38
  5. Step 5: Solve for x
    x = 16,246,737.38/5,771.67
  6. Step 6: Final answer
    x = 2,814.91

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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.