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Finding the Third Proportional to 28,618 and 61,652

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Solution

The third proportional to 28,618 and 61,652 is: 132,817.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,618 : 61,652 = 61,652 : x
  2. Step 2: Convert to fraction form
    28,618/61,652 = 61,652/x
  3. Step 3: Cross multiply
    28,618x = 61,652 × 61,652
  4. Step 4: Simplify right side
    28,618x = 3,800,969,104
  5. Step 5: Solve for x
    x = 3,800,969,104/28,618
  6. Step 6: Final answer
    x = 132,817.43

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.