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Finding the Fourth Proportional to 22.37, 33.50 and 13.32

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Solution

The fourth proportional to 22.37, 33.50 and 13.32 is: 19.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.37 : 33.50 = 13.32 : x
  2. Step 2: Convert to fraction form
    22.37/33.50 = 13.32/x
  3. Step 3: Cross multiply
    22.37x = 33.50 × 13.32
  4. Step 4: Simplify right side
    22.37x = 446.25
  5. Step 5: Solve for x
    x = 446.25/22.37
  6. Step 6: Final answer
    x = 19.95

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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.