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Finding the Fourth Proportional to 35.36, 48.82 and 22.26

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Solution

The fourth proportional to 35.36, 48.82 and 22.26 is: 30.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.36 : 48.82 = 22.26 : x
  2. Step 2: Convert to fraction form
    35.36/48.82 = 22.26/x
  3. Step 3: Cross multiply
    35.36x = 48.82 × 22.26
  4. Step 4: Simplify right side
    35.36x = 1,086.73
  5. Step 5: Solve for x
    x = 1,086.73/35.36
  6. Step 6: Final answer
    x = 30.73

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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.