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Finding the Fourth Proportional to 3,792, 5,688.69 and 1,328.34

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Solution

The fourth proportional to 3,792, 5,688.69 and 1,328.34 is: 1,992.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,792 : 5,688.69 = 1,328.34 : x
  2. Step 2: Convert to fraction form
    3,792/5,688.69 = 1,328.34/x
  3. Step 3: Cross multiply
    3,792x = 5,688.69 × 1,328.34
  4. Step 4: Simplify right side
    3,792x = 7,556,514.47
  5. Step 5: Solve for x
    x = 7,556,514.47/3,792
  6. Step 6: Final answer
    x = 1,992.75

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