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Finding the Third Proportional to 8,732 and 12,976

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Solution

The third proportional to 8,732 and 12,976 is: 19,282.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,732 : 12,976 = 12,976 : x
  2. Step 2: Convert to fraction form
    8,732/12,976 = 12,976/x
  3. Step 3: Cross multiply
    8,732x = 12,976 × 12,976
  4. Step 4: Simplify right side
    8,732x = 168,376,576
  5. Step 5: Solve for x
    x = 168,376,576/8,732
  6. Step 6: Final answer
    x = 19,282.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.