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Finding the Fourth Proportional to 29.63, 44.46 and 13.59

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Solution

The fourth proportional to 29.63, 44.46 and 13.59 is: 20.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.63 : 44.46 = 13.59 : x
  2. Step 2: Convert to fraction form
    29.63/44.46 = 13.59/x
  3. Step 3: Cross multiply
    29.63x = 44.46 × 13.59
  4. Step 4: Simplify right side
    29.63x = 604.33
  5. Step 5: Solve for x
    x = 604.33/29.63
  6. Step 6: Final answer
    x = 20.40

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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.