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Finding the Third Proportional to 36 and 39.88

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Solution

The third proportional to 36 and 39.88 is: 44.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    36 : 39.88 = 39.88 : x
  2. Step 2: Convert to fraction form
    36/39.88 = 39.88/x
  3. Step 3: Cross multiply
    36x = 39.88 × 39.88
  4. Step 4: Simplify right side
    36x = 1,590.02
  5. Step 5: Solve for x
    x = 1,590.02/36
  6. Step 6: Final answer
    x = 44.17

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These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.