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Finding the Fourth Proportional to 20,196.75, 27,873.68 and 11,820.27

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Solution

The fourth proportional to 20,196.75, 27,873.68 and 11,820.27 is: 16,313.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196.75 : 27,873.68 = 11,820.27 : x
  2. Step 2: Convert to fraction form
    20,196.75/27,873.68 = 11,820.27/x
  3. Step 3: Cross multiply
    20,196.75x = 27,873.68 × 11,820.27
  4. Step 4: Simplify right side
    20,196.75x = 329,474,364.39
  5. Step 5: Solve for x
    x = 329,474,364.39/20,196.75
  6. Step 6: Final answer
    x = 16,313.24

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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.