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Finding the Fourth Proportional to 18,997.11, 28,493.19 and 5,849.19

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Solution

The fourth proportional to 18,997.11, 28,493.19 and 5,849.19 is: 8,773.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997.11 : 28,493.19 = 5,849.19 : x
  2. Step 2: Convert to fraction form
    18,997.11/28,493.19 = 5,849.19/x
  3. Step 3: Cross multiply
    18,997.11x = 28,493.19 × 5,849.19
  4. Step 4: Simplify right side
    18,997.11x = 166,662,082.02
  5. Step 5: Solve for x
    x = 166,662,082.02/18,997.11
  6. Step 6: Final answer
    x = 8,773.02

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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.