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Finding the Fourth Proportional to 3,144.73, 4,339.73 and 1,747.48

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Solution

The fourth proportional to 3,144.73, 4,339.73 and 1,747.48 is: 2,411.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.73 : 4,339.73 = 1,747.48 : x
  2. Step 2: Convert to fraction form
    3,144.73/4,339.73 = 1,747.48/x
  3. Step 3: Cross multiply
    3,144.73x = 4,339.73 × 1,747.48
  4. Step 4: Simplify right side
    3,144.73x = 7,583,591.38
  5. Step 5: Solve for x
    x = 7,583,591.38/3,144.73
  6. Step 6: Final answer
    x = 2,411.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.