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Finding the Fourth Proportional to 18,604.06, 27,845.43 and 13,672.42

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Solution

The fourth proportional to 18,604.06, 27,845.43 and 13,672.42 is: 20,464.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,604.06 : 27,845.43 = 13,672.42 : x
  2. Step 2: Convert to fraction form
    18,604.06/27,845.43 = 13,672.42/x
  3. Step 3: Cross multiply
    18,604.06x = 27,845.43 × 13,672.42
  4. Step 4: Simplify right side
    18,604.06x = 380,714,414.04
  5. Step 5: Solve for x
    x = 380,714,414.04/18,604.06
  6. Step 6: Final answer
    x = 20,464.05

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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.