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Finding the Fourth Proportional to 2,757.98, 3,809.31 and 2,010.74

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Solution

The fourth proportional to 2,757.98, 3,809.31 and 2,010.74 is: 2,777.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.98 : 3,809.31 = 2,010.74 : x
  2. Step 2: Convert to fraction form
    2,757.98/3,809.31 = 2,010.74/x
  3. Step 3: Cross multiply
    2,757.98x = 3,809.31 × 2,010.74
  4. Step 4: Simplify right side
    2,757.98x = 7,659,531.99
  5. Step 5: Solve for x
    x = 7,659,531.99/2,757.98
  6. Step 6: Final answer
    x = 2,777.23

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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.