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Finding the Fourth Proportional to 2,757.97, 3,805.39 and 2,012.33

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Solution

The fourth proportional to 2,757.97, 3,805.39 and 2,012.33 is: 2,776.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.97 : 3,805.39 = 2,012.33 : x
  2. Step 2: Convert to fraction form
    2,757.97/3,805.39 = 2,012.33/x
  3. Step 3: Cross multiply
    2,757.97x = 3,805.39 × 2,012.33
  4. Step 4: Simplify right side
    2,757.97x = 7,657,704.94
  5. Step 5: Solve for x
    x = 7,657,704.94/2,757.97
  6. Step 6: Final answer
    x = 2,776.58

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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.