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Finding the Fourth Proportional to 26.62, 36.72 and 16.26

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Solution

The fourth proportional to 26.62, 36.72 and 16.26 is: 22.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.62 : 36.72 = 16.26 : x
  2. Step 2: Convert to fraction form
    26.62/36.72 = 16.26/x
  3. Step 3: Cross multiply
    26.62x = 36.72 × 16.26
  4. Step 4: Simplify right side
    26.62x = 597.02
  5. Step 5: Solve for x
    x = 597.02/26.62
  6. Step 6: Final answer
    x = 22.43

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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.