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Finding the Third Proportional to 28,613 and 61,642

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Solution

The third proportional to 28,613 and 61,642 is: 132,797.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,613 : 61,642 = 61,642 : x
  2. Step 2: Convert to fraction form
    28,613/61,642 = 61,642/x
  3. Step 3: Cross multiply
    28,613x = 61,642 × 61,642
  4. Step 4: Simplify right side
    28,613x = 3,799,736,164
  5. Step 5: Solve for x
    x = 3,799,736,164/28,613
  6. Step 6: Final answer
    x = 132,797.55

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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.