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Finding the Third Proportional to 8,087.50 and 17,679

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Solution

The third proportional to 8,087.50 and 17,679 is: 38,645.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087.50 : 17,679 = 17,679 : x
  2. Step 2: Convert to fraction form
    8,087.50/17,679 = 17,679/x
  3. Step 3: Cross multiply
    8,087.50x = 17,679 × 17,679
  4. Step 4: Simplify right side
    8,087.50x = 312,547,041
  5. Step 5: Solve for x
    x = 312,547,041/8,087.50
  6. Step 6: Final answer
    x = 38,645.69

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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.