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Finding the Fourth Proportional to 1,992.67, 2,749.71 and 1,108.42

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Solution

The fourth proportional to 1,992.67, 2,749.71 and 1,108.42 is: 1,529.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.67 : 2,749.71 = 1,108.42 : x
  2. Step 2: Convert to fraction form
    1,992.67/2,749.71 = 1,108.42/x
  3. Step 3: Cross multiply
    1,992.67x = 2,749.71 × 1,108.42
  4. Step 4: Simplify right side
    1,992.67x = 3,047,833.56
  5. Step 5: Solve for x
    x = 3,047,833.56/1,992.67
  6. Step 6: Final answer
    x = 1,529.52

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