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Finding the Fourth Proportional to 75.94, 113.97 and 32.61

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Solution

The fourth proportional to 75.94, 113.97 and 32.61 is: 48.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75.94 : 113.97 = 32.61 : x
  2. Step 2: Convert to fraction form
    75.94/113.97 = 32.61/x
  3. Step 3: Cross multiply
    75.94x = 113.97 × 32.61
  4. Step 4: Simplify right side
    75.94x = 3,716.28
  5. Step 5: Solve for x
    x = 3,716.28/75.94
  6. Step 6: Final answer
    x = 48.94

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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.