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Finding the Fourth Proportional to 17,561.44, 26,340.72 and 5,249.44

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Solution

The fourth proportional to 17,561.44, 26,340.72 and 5,249.44 is: 7,873.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,561.44 : 26,340.72 = 5,249.44 : x
  2. Step 2: Convert to fraction form
    17,561.44/26,340.72 = 5,249.44/x
  3. Step 3: Cross multiply
    17,561.44x = 26,340.72 × 5,249.44
  4. Step 4: Simplify right side
    17,561.44x = 138,274,029.20
  5. Step 5: Solve for x
    x = 138,274,029.20/17,561.44
  6. Step 6: Final answer
    x = 7,873.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.