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Finding the Third Proportional to 29,669 and 64,809

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Solution

The third proportional to 29,669 and 64,809 is: 141,568.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,669 : 64,809 = 64,809 : x
  2. Step 2: Convert to fraction form
    29,669/64,809 = 64,809/x
  3. Step 3: Cross multiply
    29,669x = 64,809 × 64,809
  4. Step 4: Simplify right side
    29,669x = 4,200,206,481
  5. Step 5: Solve for x
    x = 4,200,206,481/29,669
  6. Step 6: Final answer
    x = 141,568.86

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.