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Finding the Third Proportional to 7.63 and 15.63

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Solution

The third proportional to 7.63 and 15.63 is: 32.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.63 : 15.63 = 15.63 : x
  2. Step 2: Convert to fraction form
    7.63/15.63 = 15.63/x
  3. Step 3: Cross multiply
    7.63x = 15.63 × 15.63
  4. Step 4: Simplify right side
    7.63x = 244.14
  5. Step 5: Solve for x
    x = 244.14/7.63
  6. Step 6: Final answer
    x = 32.02

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.