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Finding the Fourth Proportional to 5,249.83, 7,244.50 and 2,891.92

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Solution

The fourth proportional to 5,249.83, 7,244.50 and 2,891.92 is: 3,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.83 : 7,244.50 = 2,891.92 : x
  2. Step 2: Convert to fraction form
    5,249.83/7,244.50 = 2,891.92/x
  3. Step 3: Cross multiply
    5,249.83x = 7,244.50 × 2,891.92
  4. Step 4: Simplify right side
    5,249.83x = 20,950,514.44
  5. Step 5: Solve for x
    x = 20,950,514.44/5,249.83
  6. Step 6: Final answer
    x = 3,990.70

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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.