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Finding the Third Proportional to 7,005 and 9,805

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Solution

The third proportional to 7,005 and 9,805 is: 13,724.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,005 : 9,805 = 9,805 : x
  2. Step 2: Convert to fraction form
    7,005/9,805 = 9,805/x
  3. Step 3: Cross multiply
    7,005x = 9,805 × 9,805
  4. Step 4: Simplify right side
    7,005x = 96,138,025
  5. Step 5: Solve for x
    x = 96,138,025/7,005
  6. Step 6: Final answer
    x = 13,724.20

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.