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Finding the Fourth Proportional to 20,068.30, 27,680.48 and 13,769.74

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Solution

The fourth proportional to 20,068.30, 27,680.48 and 13,769.74 is: 18,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.30 : 27,680.48 = 13,769.74 : x
  2. Step 2: Convert to fraction form
    20,068.30/27,680.48 = 13,769.74/x
  3. Step 3: Cross multiply
    20,068.30x = 27,680.48 × 13,769.74
  4. Step 4: Simplify right side
    20,068.30x = 381,153,012.68
  5. Step 5: Solve for x
    x = 381,153,012.68/20,068.30
  6. Step 6: Final answer
    x = 18,992.79

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