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Finding the Fourth Proportional to 2,859.91, 3,944.91 and 1,963.24

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Solution

The fourth proportional to 2,859.91, 3,944.91 and 1,963.24 is: 2,708.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.91 : 3,944.91 = 1,963.24 : x
  2. Step 2: Convert to fraction form
    2,859.91/3,944.91 = 1,963.24/x
  3. Step 3: Cross multiply
    2,859.91x = 3,944.91 × 1,963.24
  4. Step 4: Simplify right side
    2,859.91x = 7,744,805.11
  5. Step 5: Solve for x
    x = 7,744,805.11/2,859.91
  6. Step 6: Final answer
    x = 2,708.06

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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.