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Finding the Fourth Proportional to 11,881.62, 17,815.14 and 5,298.75

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Solution

The fourth proportional to 11,881.62, 17,815.14 and 5,298.75 is: 7,944.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.62 : 17,815.14 = 5,298.75 : x
  2. Step 2: Convert to fraction form
    11,881.62/17,815.14 = 5,298.75/x
  3. Step 3: Cross multiply
    11,881.62x = 17,815.14 × 5,298.75
  4. Step 4: Simplify right side
    11,881.62x = 94,397,973.08
  5. Step 5: Solve for x
    x = 94,397,973.08/11,881.62
  6. Step 6: Final answer
    x = 7,944.87

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