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Finding the Third Proportional to 8,519.50 and 18,335.50

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Solution

The third proportional to 8,519.50 and 18,335.50 is: 39,461.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.50 : 18,335.50 = 18,335.50 : x
  2. Step 2: Convert to fraction form
    8,519.50/18,335.50 = 18,335.50/x
  3. Step 3: Cross multiply
    8,519.50x = 18,335.50 × 18,335.50
  4. Step 4: Simplify right side
    8,519.50x = 336,190,560.25
  5. Step 5: Solve for x
    x = 336,190,560.25/8,519.50
  6. Step 6: Final answer
    x = 39,461.30

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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.