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Finding the Fourth Proportional to 18,736.53, 25,855.59 and 10,238.51

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Solution

The fourth proportional to 18,736.53, 25,855.59 and 10,238.51 is: 14,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.53 : 25,855.59 = 10,238.51 : x
  2. Step 2: Convert to fraction form
    18,736.53/25,855.59 = 10,238.51/x
  3. Step 3: Cross multiply
    18,736.53x = 25,855.59 × 10,238.51
  4. Step 4: Simplify right side
    18,736.53x = 264,722,819.80
  5. Step 5: Solve for x
    x = 264,722,819.80/18,736.53
  6. Step 6: Final answer
    x = 14,128.70

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