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Finding the Fourth Proportional to 2,252.58, 3,378.93 and 791.82

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Solution

The fourth proportional to 2,252.58, 3,378.93 and 791.82 is: 1,187.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,252.58 : 3,378.93 = 791.82 : x
  2. Step 2: Convert to fraction form
    2,252.58/3,378.93 = 791.82/x
  3. Step 3: Cross multiply
    2,252.58x = 3,378.93 × 791.82
  4. Step 4: Simplify right side
    2,252.58x = 2,675,504.35
  5. Step 5: Solve for x
    x = 2,675,504.35/2,252.58
  6. Step 6: Final answer
    x = 1,187.75

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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.