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Finding the Fourth Proportional to 2,562.69, 3,844.03 and 831.32

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Solution

The fourth proportional to 2,562.69, 3,844.03 and 831.32 is: 1,246.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,562.69 : 3,844.03 = 831.32 : x
  2. Step 2: Convert to fraction form
    2,562.69/3,844.03 = 831.32/x
  3. Step 3: Cross multiply
    2,562.69x = 3,844.03 × 831.32
  4. Step 4: Simplify right side
    2,562.69x = 3,195,599.80
  5. Step 5: Solve for x
    x = 3,195,599.80/2,562.69
  6. Step 6: Final answer
    x = 1,246.97

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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.