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Finding the Third Proportional to 10,213.25 and 15,617

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Solution

The third proportional to 10,213.25 and 15,617 is: 23,879.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,213.25 : 15,617 = 15,617 : x
  2. Step 2: Convert to fraction form
    10,213.25/15,617 = 15,617/x
  3. Step 3: Cross multiply
    10,213.25x = 15,617 × 15,617
  4. Step 4: Simplify right side
    10,213.25x = 243,890,689
  5. Step 5: Solve for x
    x = 243,890,689/10,213.25
  6. Step 6: Final answer
    x = 23,879.83

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.