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Finding the Fourth Proportional to 67.63, 101.37 and 43.18

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Solution

The fourth proportional to 67.63, 101.37 and 43.18 is: 64.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.63 : 101.37 = 43.18 : x
  2. Step 2: Convert to fraction form
    67.63/101.37 = 43.18/x
  3. Step 3: Cross multiply
    67.63x = 101.37 × 43.18
  4. Step 4: Simplify right side
    67.63x = 4,377.35
  5. Step 5: Solve for x
    x = 4,377.35/67.63
  6. Step 6: Final answer
    x = 64.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.