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Finding the Fourth Proportional to 62.75, 93.84 and 61.94

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Solution

The fourth proportional to 62.75, 93.84 and 61.94 is: 92.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.75 : 93.84 = 61.94 : x
  2. Step 2: Convert to fraction form
    62.75/93.84 = 61.94/x
  3. Step 3: Cross multiply
    62.75x = 93.84 × 61.94
  4. Step 4: Simplify right side
    62.75x = 5,811.98
  5. Step 5: Solve for x
    x = 5,811.98/62.75
  6. Step 6: Final answer
    x = 92.63

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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.