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Finding the Fourth Proportional to 2,241.24, 3,361.87 and 924.78

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Solution

The fourth proportional to 2,241.24, 3,361.87 and 924.78 is: 1,387.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,241.24 : 3,361.87 = 924.78 : x
  2. Step 2: Convert to fraction form
    2,241.24/3,361.87 = 924.78/x
  3. Step 3: Cross multiply
    2,241.24x = 3,361.87 × 924.78
  4. Step 4: Simplify right side
    2,241.24x = 3,109,003.90
  5. Step 5: Solve for x
    x = 3,109,003.90/2,241.24
  6. Step 6: Final answer
    x = 1,387.18

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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.