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Finding the Fourth Proportional to 18,179.26, 27,212.70 and 15,522.46

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Solution

The fourth proportional to 18,179.26, 27,212.70 and 15,522.46 is: 23,235.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.26 : 27,212.70 = 15,522.46 : x
  2. Step 2: Convert to fraction form
    18,179.26/27,212.70 = 15,522.46/x
  3. Step 3: Cross multiply
    18,179.26x = 27,212.70 × 15,522.46
  4. Step 4: Simplify right side
    18,179.26x = 422,408,047.24
  5. Step 5: Solve for x
    x = 422,408,047.24/18,179.26
  6. Step 6: Final answer
    x = 23,235.71

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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.