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Finding the Third Proportional to 9,980.50 and 16,634.75

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Solution

The third proportional to 9,980.50 and 16,634.75 is: 27,725.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,980.50 : 16,634.75 = 16,634.75 : x
  2. Step 2: Convert to fraction form
    9,980.50/16,634.75 = 16,634.75/x
  3. Step 3: Cross multiply
    9,980.50x = 16,634.75 × 16,634.75
  4. Step 4: Simplify right side
    9,980.50x = 276,714,907.56
  5. Step 5: Solve for x
    x = 276,714,907.56/9,980.50
  6. Step 6: Final answer
    x = 27,725.56

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.