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Finding the Fourth Proportional to 3,446.63, 5,169.99 and 849.56

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Solution

The fourth proportional to 3,446.63, 5,169.99 and 849.56 is: 1,274.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,446.63 : 5,169.99 = 849.56 : x
  2. Step 2: Convert to fraction form
    3,446.63/5,169.99 = 849.56/x
  3. Step 3: Cross multiply
    3,446.63x = 5,169.99 × 849.56
  4. Step 4: Simplify right side
    3,446.63x = 4,392,229.63
  5. Step 5: Solve for x
    x = 4,392,229.63/3,446.63
  6. Step 6: Final answer
    x = 1,274.36

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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.