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Finding the Third Proportional to 6,980 and 15,624

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Solution

The third proportional to 6,980 and 15,624 is: 34,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,980 : 15,624 = 15,624 : x
  2. Step 2: Convert to fraction form
    6,980/15,624 = 15,624/x
  3. Step 3: Cross multiply
    6,980x = 15,624 × 15,624
  4. Step 4: Simplify right side
    6,980x = 244,109,376
  5. Step 5: Solve for x
    x = 244,109,376/6,980
  6. Step 6: Final answer
    x = 34,972.69

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Why These Related Problems?

These problems maintain the same ratio (2.24) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.