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Finding the Third Proportional to 11,568.75 and 15,676.75

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Solution

The third proportional to 11,568.75 and 15,676.75 is: 21,243.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,568.75 : 15,676.75 = 15,676.75 : x
  2. Step 2: Convert to fraction form
    11,568.75/15,676.75 = 15,676.75/x
  3. Step 3: Cross multiply
    11,568.75x = 15,676.75 × 15,676.75
  4. Step 4: Simplify right side
    11,568.75x = 245,760,490.56
  5. Step 5: Solve for x
    x = 245,760,490.56/11,568.75
  6. Step 6: Final answer
    x = 21,243.48

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.