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Finding the Fourth Proportional to 67.96, 101.94 and 22.32

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Solution

The fourth proportional to 67.96, 101.94 and 22.32 is: 33.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.96 : 101.94 = 22.32 : x
  2. Step 2: Convert to fraction form
    67.96/101.94 = 22.32/x
  3. Step 3: Cross multiply
    67.96x = 101.94 × 22.32
  4. Step 4: Simplify right side
    67.96x = 2,275.30
  5. Step 5: Solve for x
    x = 2,275.30/67.96
  6. Step 6: Final answer
    x = 33.48

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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.