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Finding the Fourth Proportional to 3,797.96, 5,240.87 and 2,119.43

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Solution

The fourth proportional to 3,797.96, 5,240.87 and 2,119.43 is: 2,924.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,797.96 : 5,240.87 = 2,119.43 : x
  2. Step 2: Convert to fraction form
    3,797.96/5,240.87 = 2,119.43/x
  3. Step 3: Cross multiply
    3,797.96x = 5,240.87 × 2,119.43
  4. Step 4: Simplify right side
    3,797.96x = 11,107,667.56
  5. Step 5: Solve for x
    x = 11,107,667.56/3,797.96
  6. Step 6: Final answer
    x = 2,924.64

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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.