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Finding the Fourth Proportional to 23.84, 32.96 and 22.32

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Solution

The fourth proportional to 23.84, 32.96 and 22.32 is: 30.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.84 : 32.96 = 22.32 : x
  2. Step 2: Convert to fraction form
    23.84/32.96 = 22.32/x
  3. Step 3: Cross multiply
    23.84x = 32.96 × 22.32
  4. Step 4: Simplify right side
    23.84x = 735.67
  5. Step 5: Solve for x
    x = 735.67/23.84
  6. Step 6: Final answer
    x = 30.86

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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.