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Finding the Third Proportional to 4,292 and 9,405

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Solution

The third proportional to 4,292 and 9,405 is: 20,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,292 : 9,405 = 9,405 : x
  2. Step 2: Convert to fraction form
    4,292/9,405 = 9,405/x
  3. Step 3: Cross multiply
    4,292x = 9,405 × 9,405
  4. Step 4: Simplify right side
    4,292x = 88,454,025
  5. Step 5: Solve for x
    x = 88,454,025/4,292
  6. Step 6: Final answer
    x = 20,609.05

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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.