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Finding the Fourth Proportional to 75.33, 112.94 and 44.92

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Solution

The fourth proportional to 75.33, 112.94 and 44.92 is: 67.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75.33 : 112.94 = 44.92 : x
  2. Step 2: Convert to fraction form
    75.33/112.94 = 44.92/x
  3. Step 3: Cross multiply
    75.33x = 112.94 × 44.92
  4. Step 4: Simplify right side
    75.33x = 5,073.60
  5. Step 5: Solve for x
    x = 5,073.60/75.33
  6. Step 6: Final answer
    x = 67.35

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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.