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Finding the Third Proportional to 18,520 and 37,726

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Solution

The third proportional to 18,520 and 37,726 is: 76,849.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520 : 37,726 = 37,726 : x
  2. Step 2: Convert to fraction form
    18,520/37,726 = 37,726/x
  3. Step 3: Cross multiply
    18,520x = 37,726 × 37,726
  4. Step 4: Simplify right side
    18,520x = 1,423,251,076
  5. Step 5: Solve for x
    x = 1,423,251,076/18,520
  6. Step 6: Final answer
    x = 76,849.41

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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.