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Finding the Third Proportional to 29,975 and 65,660

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Solution

The third proportional to 29,975 and 65,660 is: 143,827.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,975 : 65,660 = 65,660 : x
  2. Step 2: Convert to fraction form
    29,975/65,660 = 65,660/x
  3. Step 3: Cross multiply
    29,975x = 65,660 × 65,660
  4. Step 4: Simplify right side
    29,975x = 4,311,235,600
  5. Step 5: Solve for x
    x = 4,311,235,600/29,975
  6. Step 6: Final answer
    x = 143,827.71

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.