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Finding the Third Proportional to 4,285 and 9,916

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Solution

The third proportional to 4,285 and 9,916 is: 22,946.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285 : 9,916 = 9,916 : x
  2. Step 2: Convert to fraction form
    4,285/9,916 = 9,916/x
  3. Step 3: Cross multiply
    4,285x = 9,916 × 9,916
  4. Step 4: Simplify right side
    4,285x = 98,327,056
  5. Step 5: Solve for x
    x = 98,327,056/4,285
  6. Step 6: Final answer
    x = 22,946.80

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.