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Finding the Fourth Proportional to 26.22, 36.16 and 16.50

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Solution

The fourth proportional to 26.22, 36.16 and 16.50 is: 22.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.22 : 36.16 = 16.50 : x
  2. Step 2: Convert to fraction form
    26.22/36.16 = 16.50/x
  3. Step 3: Cross multiply
    26.22x = 36.16 × 16.50
  4. Step 4: Simplify right side
    26.22x = 596.64
  5. Step 5: Solve for x
    x = 596.64/26.22
  6. Step 6: Final answer
    x = 22.76

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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.