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Finding the Third Proportional to 19,724 and 29,512

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Solution

The third proportional to 19,724 and 29,512 is: 44,157.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,724 : 29,512 = 29,512 : x
  2. Step 2: Convert to fraction form
    19,724/29,512 = 29,512/x
  3. Step 3: Cross multiply
    19,724x = 29,512 × 29,512
  4. Step 4: Simplify right side
    19,724x = 870,958,144
  5. Step 5: Solve for x
    x = 870,958,144/19,724
  6. Step 6: Final answer
    x = 44,157.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.