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Finding the Fourth Proportional to 29.78, 44.61 and 16.26

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Solution

The fourth proportional to 29.78, 44.61 and 16.26 is: 24.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.78 : 44.61 = 16.26 : x
  2. Step 2: Convert to fraction form
    29.78/44.61 = 16.26/x
  3. Step 3: Cross multiply
    29.78x = 44.61 × 16.26
  4. Step 4: Simplify right side
    29.78x = 725.36
  5. Step 5: Solve for x
    x = 725.36/29.78
  6. Step 6: Final answer
    x = 24.36

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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.