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Finding the Fourth Proportional to 67.95, 93.11 and 67.41

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Solution

The fourth proportional to 67.95, 93.11 and 67.41 is: 92.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.95 : 93.11 = 67.41 : x
  2. Step 2: Convert to fraction form
    67.95/93.11 = 67.41/x
  3. Step 3: Cross multiply
    67.95x = 93.11 × 67.41
  4. Step 4: Simplify right side
    67.95x = 6,276.21
  5. Step 5: Solve for x
    x = 6,276.21/67.95
  6. Step 6: Final answer
    x = 92.37

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.