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Finding the Fourth Proportional to 2,489.97, 3,751.58 and 2,252.79

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Solution

The fourth proportional to 2,489.97, 3,751.58 and 2,252.79 is: 3,394.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.97 : 3,751.58 = 2,252.79 : x
  2. Step 2: Convert to fraction form
    2,489.97/3,751.58 = 2,252.79/x
  3. Step 3: Cross multiply
    2,489.97x = 3,751.58 × 2,252.79
  4. Step 4: Simplify right side
    2,489.97x = 8,451,510.64
  5. Step 5: Solve for x
    x = 8,451,510.64/2,489.97
  6. Step 6: Final answer
    x = 3,394.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.