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Finding the Third Proportional to 47.25 and 113.63

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Solution

The third proportional to 47.25 and 113.63 is: 273.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    47.25 : 113.63 = 113.63 : x
  2. Step 2: Convert to fraction form
    47.25/113.63 = 113.63/x
  3. Step 3: Cross multiply
    47.25x = 113.63 × 113.63
  4. Step 4: Simplify right side
    47.25x = 12,910.64
  5. Step 5: Solve for x
    x = 12,910.64/47.25
  6. Step 6: Final answer
    x = 273.24

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.