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Finding the Fourth Proportional to 23.99, 33.18 and 22.16

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Solution

The fourth proportional to 23.99, 33.18 and 22.16 is: 30.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.99 : 33.18 = 22.16 : x
  2. Step 2: Convert to fraction form
    23.99/33.18 = 22.16/x
  3. Step 3: Cross multiply
    23.99x = 33.18 × 22.16
  4. Step 4: Simplify right side
    23.99x = 735.27
  5. Step 5: Solve for x
    x = 735.27/23.99
  6. Step 6: Final answer
    x = 30.65

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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.