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Finding the Third Proportional to 8,325 and 9,405

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Solution

The third proportional to 8,325 and 9,405 is: 10,625.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,325 : 9,405 = 9,405 : x
  2. Step 2: Convert to fraction form
    8,325/9,405 = 9,405/x
  3. Step 3: Cross multiply
    8,325x = 9,405 × 9,405
  4. Step 4: Simplify right side
    8,325x = 88,454,025
  5. Step 5: Solve for x
    x = 88,454,025/8,325
  6. Step 6: Final answer
    x = 10,625.11

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.