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Finding the Third Proportional to 5,281 and 10,723

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Solution

The third proportional to 5,281 and 10,723 is: 21,772.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281 : 10,723 = 10,723 : x
  2. Step 2: Convert to fraction form
    5,281/10,723 = 10,723/x
  3. Step 3: Cross multiply
    5,281x = 10,723 × 10,723
  4. Step 4: Simplify right side
    5,281x = 114,982,729
  5. Step 5: Solve for x
    x = 114,982,729/5,281
  6. Step 6: Final answer
    x = 21,772.91

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.