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Finding the Fourth Proportional to 13,906.10, 20,861.19 and 4,044.10

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Solution

The fourth proportional to 13,906.10, 20,861.19 and 4,044.10 is: 6,066.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.10 : 20,861.19 = 4,044.10 : x
  2. Step 2: Convert to fraction form
    13,906.10/20,861.19 = 4,044.10/x
  3. Step 3: Cross multiply
    13,906.10x = 20,861.19 × 4,044.10
  4. Step 4: Simplify right side
    13,906.10x = 84,364,738.48
  5. Step 5: Solve for x
    x = 84,364,738.48/13,906.10
  6. Step 6: Final answer
    x = 6,066.74

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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.