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Finding the Fourth Proportional to 99.96, 149.98 and 35.84

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Solution

The fourth proportional to 99.96, 149.98 and 35.84 is: 53.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99.96 : 149.98 = 35.84 : x
  2. Step 2: Convert to fraction form
    99.96/149.98 = 35.84/x
  3. Step 3: Cross multiply
    99.96x = 149.98 × 35.84
  4. Step 4: Simplify right side
    99.96x = 5,375.28
  5. Step 5: Solve for x
    x = 5,375.28/99.96
  6. Step 6: Final answer
    x = 53.77

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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.