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Finding the Fourth Proportional to 65.96, 98.96 and 33.92

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Solution

The fourth proportional to 65.96, 98.96 and 33.92 is: 50.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65.96 : 98.96 = 33.92 : x
  2. Step 2: Convert to fraction form
    65.96/98.96 = 33.92/x
  3. Step 3: Cross multiply
    65.96x = 98.96 × 33.92
  4. Step 4: Simplify right side
    65.96x = 3,356.72
  5. Step 5: Solve for x
    x = 3,356.72/65.96
  6. Step 6: Final answer
    x = 50.89

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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.