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Finding the Fourth Proportional to 7,956.78, 11,935.36 and 2,113.38

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Solution

The fourth proportional to 7,956.78, 11,935.36 and 2,113.38 is: 3,170.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.78 : 11,935.36 = 2,113.38 : x
  2. Step 2: Convert to fraction form
    7,956.78/11,935.36 = 2,113.38/x
  3. Step 3: Cross multiply
    7,956.78x = 11,935.36 × 2,113.38
  4. Step 4: Simplify right side
    7,956.78x = 25,223,951.12
  5. Step 5: Solve for x
    x = 25,223,951.12/7,956.78
  6. Step 6: Final answer
    x = 3,170.12

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