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Finding the Fourth Proportional to 92.26, 127.32 and 50.82

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Solution

The fourth proportional to 92.26, 127.32 and 50.82 is: 70.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.26 : 127.32 = 50.82 : x
  2. Step 2: Convert to fraction form
    92.26/127.32 = 50.82/x
  3. Step 3: Cross multiply
    92.26x = 127.32 × 50.82
  4. Step 4: Simplify right side
    92.26x = 6,469.77
  5. Step 5: Solve for x
    x = 6,469.77/92.26
  6. Step 6: Final answer
    x = 70.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.