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Finding the Fourth Proportional to 63.92, 95.16 and 63.36

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Solution

The fourth proportional to 63.92, 95.16 and 63.36 is: 94.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.92 : 95.16 = 63.36 : x
  2. Step 2: Convert to fraction form
    63.92/95.16 = 63.36/x
  3. Step 3: Cross multiply
    63.92x = 95.16 × 63.36
  4. Step 4: Simplify right side
    63.92x = 6,029.34
  5. Step 5: Solve for x
    x = 6,029.34/63.92
  6. Step 6: Final answer
    x = 94.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.