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Finding the Fourth Proportional to 18,127.76, 27,208.04 and 12,583.71

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Solution

The fourth proportional to 18,127.76, 27,208.04 and 12,583.71 is: 18,886.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.76 : 27,208.04 = 12,583.71 : x
  2. Step 2: Convert to fraction form
    18,127.76/27,208.04 = 12,583.71/x
  3. Step 3: Cross multiply
    18,127.76x = 27,208.04 × 12,583.71
  4. Step 4: Simplify right side
    18,127.76x = 342,378,022.11
  5. Step 5: Solve for x
    x = 342,378,022.11/18,127.76
  6. Step 6: Final answer
    x = 18,886.95

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