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Finding the Fourth Proportional to 2,327.25, 3,491.42 and 788.25

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Solution

The fourth proportional to 2,327.25, 3,491.42 and 788.25 is: 1,182.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,327.25 : 3,491.42 = 788.25 : x
  2. Step 2: Convert to fraction form
    2,327.25/3,491.42 = 788.25/x
  3. Step 3: Cross multiply
    2,327.25x = 3,491.42 × 788.25
  4. Step 4: Simplify right side
    2,327.25x = 2,752,107.87
  5. Step 5: Solve for x
    x = 2,752,107.87/2,327.25
  6. Step 6: Final answer
    x = 1,182.56

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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.