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Finding the Third Proportional to 8,906 and 18,106

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Solution

The third proportional to 8,906 and 18,106 is: 36,809.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906 : 18,106 = 18,106 : x
  2. Step 2: Convert to fraction form
    8,906/18,106 = 18,106/x
  3. Step 3: Cross multiply
    8,906x = 18,106 × 18,106
  4. Step 4: Simplify right side
    8,906x = 327,827,236
  5. Step 5: Solve for x
    x = 327,827,236/8,906
  6. Step 6: Final answer
    x = 36,809.71

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.