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Finding the Fourth Proportional to 2,042.70, 3,062.19 and 743.25

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Solution

The fourth proportional to 2,042.70, 3,062.19 and 743.25 is: 1,114.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,042.70 : 3,062.19 = 743.25 : x
  2. Step 2: Convert to fraction form
    2,042.70/3,062.19 = 743.25/x
  3. Step 3: Cross multiply
    2,042.70x = 3,062.19 × 743.25
  4. Step 4: Simplify right side
    2,042.70x = 2,275,972.72
  5. Step 5: Solve for x
    x = 2,275,972.72/2,042.70
  6. Step 6: Final answer
    x = 1,114.20

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1.5x scale

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.