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Finding the Fourth Proportional to 67.98, 101.98 and 35.49

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Solution

The fourth proportional to 67.98, 101.98 and 35.49 is: 53.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.98 : 101.98 = 35.49 : x
  2. Step 2: Convert to fraction form
    67.98/101.98 = 35.49/x
  3. Step 3: Cross multiply
    67.98x = 101.98 × 35.49
  4. Step 4: Simplify right side
    67.98x = 3,619.27
  5. Step 5: Solve for x
    x = 3,619.27/67.98
  6. Step 6: Final answer
    x = 53.24

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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.