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Finding the Fourth Proportional to 3,797.33, 5,239.80 and 2,118.49

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Solution

The fourth proportional to 3,797.33, 5,239.80 and 2,118.49 is: 2,923.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,797.33 : 5,239.80 = 2,118.49 : x
  2. Step 2: Convert to fraction form
    3,797.33/5,239.80 = 2,118.49/x
  3. Step 3: Cross multiply
    3,797.33x = 5,239.80 × 2,118.49
  4. Step 4: Simplify right side
    3,797.33x = 11,100,450.80
  5. Step 5: Solve for x
    x = 11,100,450.80/3,797.33
  6. Step 6: Final answer
    x = 2,923.23

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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.