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Finding the Fourth Proportional to 18,175.26, 27,206.70 and 15,518.46

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Solution

The fourth proportional to 18,175.26, 27,206.70 and 15,518.46 is: 23,229.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,175.26 : 27,206.70 = 15,518.46 : x
  2. Step 2: Convert to fraction form
    18,175.26/27,206.70 = 15,518.46/x
  3. Step 3: Cross multiply
    18,175.26x = 27,206.70 × 15,518.46
  4. Step 4: Simplify right side
    18,175.26x = 422,206,085.68
  5. Step 5: Solve for x
    x = 422,206,085.68/18,175.26
  6. Step 6: Final answer
    x = 23,229.71

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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.