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Finding the Fourth Proportional to 107.97, 161.98 and 35.83

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Solution

The fourth proportional to 107.97, 161.98 and 35.83 is: 53.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.97 : 161.98 = 35.83 : x
  2. Step 2: Convert to fraction form
    107.97/161.98 = 35.83/x
  3. Step 3: Cross multiply
    107.97x = 161.98 × 35.83
  4. Step 4: Simplify right side
    107.97x = 5,803.25
  5. Step 5: Solve for x
    x = 5,803.25/107.97
  6. Step 6: Final answer
    x = 53.75

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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.