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Finding the Fourth Proportional to 14,818.20, 20,449.44 and 8,104.08

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Solution

The fourth proportional to 14,818.20, 20,449.44 and 8,104.08 is: 11,183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,818.20 : 20,449.44 = 8,104.08 : x
  2. Step 2: Convert to fraction form
    14,818.20/20,449.44 = 8,104.08/x
  3. Step 3: Cross multiply
    14,818.20x = 20,449.44 × 8,104.08
  4. Step 4: Simplify right side
    14,818.20x = 165,723,897.72
  5. Step 5: Solve for x
    x = 165,723,897.72/14,818.20
  6. Step 6: Final answer
    x = 11,183.81

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1.5x scale

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.