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Finding the Third Proportional to 4,720 and 10,372

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Solution

The third proportional to 4,720 and 10,372 is: 22,792.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720 : 10,372 = 10,372 : x
  2. Step 2: Convert to fraction form
    4,720/10,372 = 10,372/x
  3. Step 3: Cross multiply
    4,720x = 10,372 × 10,372
  4. Step 4: Simplify right side
    4,720x = 107,578,384
  5. Step 5: Solve for x
    x = 107,578,384/4,720
  6. Step 6: Final answer
    x = 22,792.03

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.