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Finding the Fourth Proportional to 20,215.67, 30,322.48 and 7,734.74

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Solution

The fourth proportional to 20,215.67, 30,322.48 and 7,734.74 is: 11,601.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.67 : 30,322.48 = 7,734.74 : x
  2. Step 2: Convert to fraction form
    20,215.67/30,322.48 = 7,734.74/x
  3. Step 3: Cross multiply
    20,215.67x = 30,322.48 × 7,734.74
  4. Step 4: Simplify right side
    20,215.67x = 234,536,308.67
  5. Step 5: Solve for x
    x = 234,536,308.67/20,215.67
  6. Step 6: Final answer
    x = 11,601.71

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