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Finding the Third Proportional to 90 and 95.63

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Solution

The third proportional to 90 and 95.63 is: 101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90 : 95.63 = 95.63 : x
  2. Step 2: Convert to fraction form
    90/95.63 = 95.63/x
  3. Step 3: Cross multiply
    90x = 95.63 × 95.63
  4. Step 4: Simplify right side
    90x = 9,144.14
  5. Step 5: Solve for x
    x = 9,144.14/90
  6. Step 6: Final answer
    x = 101.60

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Why These Related Problems?

These problems maintain the same ratio (1.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.