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Finding the Fourth Proportional to 20,150.66, 27,807.35 and 11,197.73

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Solution

The fourth proportional to 20,150.66, 27,807.35 and 11,197.73 is: 15,452.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.66 : 27,807.35 = 11,197.73 : x
  2. Step 2: Convert to fraction form
    20,150.66/27,807.35 = 11,197.73/x
  3. Step 3: Cross multiply
    20,150.66x = 27,807.35 × 11,197.73
  4. Step 4: Simplify right side
    20,150.66x = 311,379,002.29
  5. Step 5: Solve for x
    x = 311,379,002.29/20,150.66
  6. Step 6: Final answer
    x = 15,452.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.