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Finding the Fourth Proportional to 17,859.82, 26,794.19 and 12,605.09

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Solution

The fourth proportional to 17,859.82, 26,794.19 and 12,605.09 is: 18,910.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,859.82 : 26,794.19 = 12,605.09 : x
  2. Step 2: Convert to fraction form
    17,859.82/26,794.19 = 12,605.09/x
  3. Step 3: Cross multiply
    17,859.82x = 26,794.19 × 12,605.09
  4. Step 4: Simplify right side
    17,859.82x = 337,743,176.43
  5. Step 5: Solve for x
    x = 337,743,176.43/17,859.82
  6. Step 6: Final answer
    x = 18,910.78

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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.