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Finding the Fourth Proportional to 5,861.78, 8,771.04 and 3,523.19

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Solution

The fourth proportional to 5,861.78, 8,771.04 and 3,523.19 is: 5,271.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,861.78 : 8,771.04 = 3,523.19 : x
  2. Step 2: Convert to fraction form
    5,861.78/8,771.04 = 3,523.19/x
  3. Step 3: Cross multiply
    5,861.78x = 8,771.04 × 3,523.19
  4. Step 4: Simplify right side
    5,861.78x = 30,902,040.42
  5. Step 5: Solve for x
    x = 30,902,040.42/5,861.78
  6. Step 6: Final answer
    x = 5,271.78

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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.