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Finding the Fourth Proportional to 34.96, 48.22 and 22.67

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Solution

The fourth proportional to 34.96, 48.22 and 22.67 is: 31.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.96 : 48.22 = 22.67 : x
  2. Step 2: Convert to fraction form
    34.96/48.22 = 22.67/x
  3. Step 3: Cross multiply
    34.96x = 48.22 × 22.67
  4. Step 4: Simplify right side
    34.96x = 1,093.15
  5. Step 5: Solve for x
    x = 1,093.15/34.96
  6. Step 6: Final answer
    x = 31.27

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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.