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Finding the Fourth Proportional to 36.74, 54.95 and 26.48

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Solution

The fourth proportional to 36.74, 54.95 and 26.48 is: 39.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36.74 : 54.95 = 26.48 : x
  2. Step 2: Convert to fraction form
    36.74/54.95 = 26.48/x
  3. Step 3: Cross multiply
    36.74x = 54.95 × 26.48
  4. Step 4: Simplify right side
    36.74x = 1,454.67
  5. Step 5: Solve for x
    x = 1,454.67/36.74
  6. Step 6: Final answer
    x = 39.60

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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.