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Finding the Fourth Proportional to 6,188.56, 8,540.30 and 3,394

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Solution

The fourth proportional to 6,188.56, 8,540.30 and 3,394 is: 4,683.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,188.56 : 8,540.30 = 3,394 : x
  2. Step 2: Convert to fraction form
    6,188.56/8,540.30 = 3,394/x
  3. Step 3: Cross multiply
    6,188.56x = 8,540.30 × 3,394
  4. Step 4: Simplify right side
    6,188.56x = 28,985,778.20
  5. Step 5: Solve for x
    x = 28,985,778.20/6,188.56
  6. Step 6: Final answer
    x = 4,683.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.