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Finding the Third Proportional to 5,321.50 and 11,564

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Solution

The third proportional to 5,321.50 and 11,564 is: 25,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.50 : 11,564 = 11,564 : x
  2. Step 2: Convert to fraction form
    5,321.50/11,564 = 11,564/x
  3. Step 3: Cross multiply
    5,321.50x = 11,564 × 11,564
  4. Step 4: Simplify right side
    5,321.50x = 133,726,096
  5. Step 5: Solve for x
    x = 133,726,096/5,321.50
  6. Step 6: Final answer
    x = 25,129.40

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.