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Finding the Fourth Proportional to 26.36, 36.35 and 16.65

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Solution

The fourth proportional to 26.36, 36.35 and 16.65 is: 22.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.36 : 36.35 = 16.65 : x
  2. Step 2: Convert to fraction form
    26.36/36.35 = 16.65/x
  3. Step 3: Cross multiply
    26.36x = 36.35 × 16.65
  4. Step 4: Simplify right side
    26.36x = 605.14
  5. Step 5: Solve for x
    x = 605.14/26.36
  6. Step 6: Final answer
    x = 22.96

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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.