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Finding the Third Proportional to 18,512 and 37,776

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Solution

The third proportional to 18,512 and 37,776 is: 77,086.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512 : 37,776 = 37,776 : x
  2. Step 2: Convert to fraction form
    18,512/37,776 = 37,776/x
  3. Step 3: Cross multiply
    18,512x = 37,776 × 37,776
  4. Step 4: Simplify right side
    18,512x = 1,427,026,176
  5. Step 5: Solve for x
    x = 1,427,026,176/18,512
  6. Step 6: Final answer
    x = 77,086.55

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.