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Finding the Fourth Proportional to 17,561.98, 26,342.94 and 8,198.86

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Solution

The fourth proportional to 17,561.98, 26,342.94 and 8,198.86 is: 12,298.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,561.98 : 26,342.94 = 8,198.86 : x
  2. Step 2: Convert to fraction form
    17,561.98/26,342.94 = 8,198.86/x
  3. Step 3: Cross multiply
    17,561.98x = 26,342.94 × 8,198.86
  4. Step 4: Simplify right side
    17,561.98x = 215,982,077.05
  5. Step 5: Solve for x
    x = 215,982,077.05/17,561.98
  6. Step 6: Final answer
    x = 12,298.28

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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.