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Finding the Fourth Proportional to 13,906.41, 20,861.63 and 4,044.42

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Solution

The fourth proportional to 13,906.41, 20,861.63 and 4,044.42 is: 6,067.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.41 : 20,861.63 = 4,044.42 : x
  2. Step 2: Convert to fraction form
    13,906.41/20,861.63 = 4,044.42/x
  3. Step 3: Cross multiply
    13,906.41x = 20,861.63 × 4,044.42
  4. Step 4: Simplify right side
    13,906.41x = 84,373,193.60
  5. Step 5: Solve for x
    x = 84,373,193.60/13,906.41
  6. Step 6: Final answer
    x = 6,067.22

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1.5x scale

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.