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Finding the Fourth Proportional to 13,892.67, 20,884.17 and 11,149.41

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Solution

The fourth proportional to 13,892.67, 20,884.17 and 11,149.41 is: 16,760.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.67 : 20,884.17 = 11,149.41 : x
  2. Step 2: Convert to fraction form
    13,892.67/20,884.17 = 11,149.41/x
  3. Step 3: Cross multiply
    13,892.67x = 20,884.17 × 11,149.41
  4. Step 4: Simplify right side
    13,892.67x = 232,846,041.55
  5. Step 5: Solve for x
    x = 232,846,041.55/13,892.67
  6. Step 6: Final answer
    x = 16,760.35

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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.