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Finding the Fourth Proportional to 26.98, 40.44 and 11.76

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Solution

The fourth proportional to 26.98, 40.44 and 11.76 is: 17.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26.98 : 40.44 = 11.76 : x
  2. Step 2: Convert to fraction form
    26.98/40.44 = 11.76/x
  3. Step 3: Cross multiply
    26.98x = 40.44 × 11.76
  4. Step 4: Simplify right side
    26.98x = 475.57
  5. Step 5: Solve for x
    x = 475.57/26.98
  6. Step 6: Final answer
    x = 17.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.