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Finding the Fourth Proportional to 67.35, 92.93 and 38.24

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Solution

The fourth proportional to 67.35, 92.93 and 38.24 is: 52.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.35 : 92.93 = 38.24 : x
  2. Step 2: Convert to fraction form
    67.35/92.93 = 38.24/x
  3. Step 3: Cross multiply
    67.35x = 92.93 × 38.24
  4. Step 4: Simplify right side
    67.35x = 3,553.45
  5. Step 5: Solve for x
    x = 3,553.45/67.35
  6. Step 6: Final answer
    x = 52.76

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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.