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Finding the Fourth Proportional to 22,245.99, 30,704.72 and 13,297.52

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Solution

The fourth proportional to 22,245.99, 30,704.72 and 13,297.52 is: 18,353.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,245.99 : 30,704.72 = 13,297.52 : x
  2. Step 2: Convert to fraction form
    22,245.99/30,704.72 = 13,297.52/x
  3. Step 3: Cross multiply
    22,245.99x = 30,704.72 × 13,297.52
  4. Step 4: Simplify right side
    22,245.99x = 408,296,408.28
  5. Step 5: Solve for x
    x = 408,296,408.28/22,245.99
  6. Step 6: Final answer
    x = 18,353.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.