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Finding the Third Proportional to 30,666 and 65,629

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Solution

The third proportional to 30,666 and 65,629 is: 140,454.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,666 : 65,629 = 65,629 : x
  2. Step 2: Convert to fraction form
    30,666/65,629 = 65,629/x
  3. Step 3: Cross multiply
    30,666x = 65,629 × 65,629
  4. Step 4: Simplify right side
    30,666x = 4,307,165,641
  5. Step 5: Solve for x
    x = 4,307,165,641/30,666
  6. Step 6: Final answer
    x = 140,454.11

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.