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Finding the Third Proportional to 18,646 and 40,748

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Solution

The third proportional to 18,646 and 40,748 is: 89,048.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,646 : 40,748 = 40,748 : x
  2. Step 2: Convert to fraction form
    18,646/40,748 = 40,748/x
  3. Step 3: Cross multiply
    18,646x = 40,748 × 40,748
  4. Step 4: Simplify right side
    18,646x = 1,660,399,504
  5. Step 5: Solve for x
    x = 1,660,399,504/18,646
  6. Step 6: Final answer
    x = 89,048.56

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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.