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Finding the Fourth Proportional to 3,831.03, 5,744.42 and 1,489.59

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Solution

The fourth proportional to 3,831.03, 5,744.42 and 1,489.59 is: 2,233.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.03 : 5,744.42 = 1,489.59 : x
  2. Step 2: Convert to fraction form
    3,831.03/5,744.42 = 1,489.59/x
  3. Step 3: Cross multiply
    3,831.03x = 5,744.42 × 1,489.59
  4. Step 4: Simplify right side
    3,831.03x = 8,556,828.73
  5. Step 5: Solve for x
    x = 8,556,828.73/3,831.03
  6. Step 6: Final answer
    x = 2,233.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.