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Finding the Third Proportional to 18,762 and 28,611

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Solution

The third proportional to 18,762 and 28,611 is: 43,630.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,762 : 28,611 = 28,611 : x
  2. Step 2: Convert to fraction form
    18,762/28,611 = 28,611/x
  3. Step 3: Cross multiply
    18,762x = 28,611 × 28,611
  4. Step 4: Simplify right side
    18,762x = 818,589,321
  5. Step 5: Solve for x
    x = 818,589,321/18,762
  6. Step 6: Final answer
    x = 43,630.17

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.