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Finding the Fourth Proportional to 1,992.65, 2,749.98 and 1,108.45

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Solution

The fourth proportional to 1,992.65, 2,749.98 and 1,108.45 is: 1,529.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992.65 : 2,749.98 = 1,108.45 : x
  2. Step 2: Convert to fraction form
    1,992.65/2,749.98 = 1,108.45/x
  3. Step 3: Cross multiply
    1,992.65x = 2,749.98 × 1,108.45
  4. Step 4: Simplify right side
    1,992.65x = 3,048,217.69
  5. Step 5: Solve for x
    x = 3,048,217.69/1,992.65
  6. Step 6: Final answer
    x = 1,529.73

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