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Finding the Fourth Proportional to 2,257.86, 3,387.10 and 797.03

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Solution

The fourth proportional to 2,257.86, 3,387.10 and 797.03 is: 1,195.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.86 : 3,387.10 = 797.03 : x
  2. Step 2: Convert to fraction form
    2,257.86/3,387.10 = 797.03/x
  3. Step 3: Cross multiply
    2,257.86x = 3,387.10 × 797.03
  4. Step 4: Simplify right side
    2,257.86x = 2,699,620.31
  5. Step 5: Solve for x
    x = 2,699,620.31/2,257.86
  6. Step 6: Final answer
    x = 1,195.65

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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.