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Finding the Third Proportional to 7,692 and 18,008

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Solution

The third proportional to 7,692 and 18,008 is: 42,159.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,692 : 18,008 = 18,008 : x
  2. Step 2: Convert to fraction form
    7,692/18,008 = 18,008/x
  3. Step 3: Cross multiply
    7,692x = 18,008 × 18,008
  4. Step 4: Simplify right side
    7,692x = 324,288,064
  5. Step 5: Solve for x
    x = 324,288,064/7,692
  6. Step 6: Final answer
    x = 42,159.13

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.