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Finding the Third Proportional to 23 and 38.63

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Solution

The third proportional to 23 and 38.63 is: 64.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    23 : 38.63 = 38.63 : x
  2. Step 2: Convert to fraction form
    23/38.63 = 38.63/x
  3. Step 3: Cross multiply
    23x = 38.63 × 38.63
  4. Step 4: Simplify right side
    23x = 1,491.89
  5. Step 5: Solve for x
    x = 1,491.89/23
  6. Step 6: Final answer
    x = 64.86

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Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.