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Finding the Third Proportional to 18,273 and 37,929

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Solution

The third proportional to 18,273 and 37,929 is: 78,728.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,273 : 37,929 = 37,929 : x
  2. Step 2: Convert to fraction form
    18,273/37,929 = 37,929/x
  3. Step 3: Cross multiply
    18,273x = 37,929 × 37,929
  4. Step 4: Simplify right side
    18,273x = 1,438,609,041
  5. Step 5: Solve for x
    x = 1,438,609,041/18,273
  6. Step 6: Final answer
    x = 78,728.67

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.