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Finding the Fourth Proportional to 18,258.56, 27,315.79 and 13,829.02

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Solution

The fourth proportional to 18,258.56, 27,315.79 and 13,829.02 is: 20,688.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.56 : 27,315.79 = 13,829.02 : x
  2. Step 2: Convert to fraction form
    18,258.56/27,315.79 = 13,829.02/x
  3. Step 3: Cross multiply
    18,258.56x = 27,315.79 × 13,829.02
  4. Step 4: Simplify right side
    18,258.56x = 377,750,503.36
  5. Step 5: Solve for x
    x = 377,750,503.36/18,258.56
  6. Step 6: Final answer
    x = 20,688.96

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