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Finding the Fourth Proportional to 2,843.96, 3,924.86 and 1,724.94

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Solution

The fourth proportional to 2,843.96, 3,924.86 and 1,724.94 is: 2,380.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,843.96 : 3,924.86 = 1,724.94 : x
  2. Step 2: Convert to fraction form
    2,843.96/3,924.86 = 1,724.94/x
  3. Step 3: Cross multiply
    2,843.96x = 3,924.86 × 1,724.94
  4. Step 4: Simplify right side
    2,843.96x = 6,770,139.38
  5. Step 5: Solve for x
    x = 6,770,139.38/2,843.96
  6. Step 6: Final answer
    x = 2,380.54

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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.