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Finding the Fourth Proportional to 17,859.75, 26,753.28 and 11,600.79

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Solution

The fourth proportional to 17,859.75, 26,753.28 and 11,600.79 is: 17,377.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,859.75 : 26,753.28 = 11,600.79 : x
  2. Step 2: Convert to fraction form
    17,859.75/26,753.28 = 11,600.79/x
  3. Step 3: Cross multiply
    17,859.75x = 26,753.28 × 11,600.79
  4. Step 4: Simplify right side
    17,859.75x = 310,359,183.09
  5. Step 5: Solve for x
    x = 310,359,183.09/17,859.75
  6. Step 6: Final answer
    x = 17,377.58

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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.