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Finding the Fourth Proportional to 2,843.07, 3,924.18 and 1,724.06

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Solution

The fourth proportional to 2,843.07, 3,924.18 and 1,724.06 is: 2,379.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,843.07 : 3,924.18 = 1,724.06 : x
  2. Step 2: Convert to fraction form
    2,843.07/3,924.18 = 1,724.06/x
  3. Step 3: Cross multiply
    2,843.07x = 3,924.18 × 1,724.06
  4. Step 4: Simplify right side
    2,843.07x = 6,765,502.15
  5. Step 5: Solve for x
    x = 6,765,502.15/2,843.07
  6. Step 6: Final answer
    x = 2,379.65

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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.