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Finding the Third Proportional to 87 and 95.63

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Solution

The third proportional to 87 and 95.63 is: 105.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87 : 95.63 = 95.63 : x
  2. Step 2: Convert to fraction form
    87/95.63 = 95.63/x
  3. Step 3: Cross multiply
    87x = 95.63 × 95.63
  4. Step 4: Simplify right side
    87x = 9,144.14
  5. Step 5: Solve for x
    x = 9,144.14/87
  6. Step 6: Final answer
    x = 105.11

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.