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Finding the Third Proportional to 20,628 and 45,975

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Solution

The third proportional to 20,628 and 45,975 is: 102,467.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628 : 45,975 = 45,975 : x
  2. Step 2: Convert to fraction form
    20,628/45,975 = 45,975/x
  3. Step 3: Cross multiply
    20,628x = 45,975 × 45,975
  4. Step 4: Simplify right side
    20,628x = 2,113,700,625
  5. Step 5: Solve for x
    x = 2,113,700,625/20,628
  6. Step 6: Final answer
    x = 102,467.55

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.