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Finding the Fourth Proportional to 2,253.12, 3,381 and 793.48

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Solution

The fourth proportional to 2,253.12, 3,381 and 793.48 is: 1,190.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.12 : 3,381 = 793.48 : x
  2. Step 2: Convert to fraction form
    2,253.12/3,381 = 793.48/x
  3. Step 3: Cross multiply
    2,253.12x = 3,381 × 793.48
  4. Step 4: Simplify right side
    2,253.12x = 2,682,755.88
  5. Step 5: Solve for x
    x = 2,682,755.88/2,253.12
  6. Step 6: Final answer
    x = 1,190.68

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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.