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Finding the Third Proportional to 12,963 and 19,539

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Solution

The third proportional to 12,963 and 19,539 is: 29,450.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963 : 19,539 = 19,539 : x
  2. Step 2: Convert to fraction form
    12,963/19,539 = 19,539/x
  3. Step 3: Cross multiply
    12,963x = 19,539 × 19,539
  4. Step 4: Simplify right side
    12,963x = 381,772,521
  5. Step 5: Solve for x
    x = 381,772,521/12,963
  6. Step 6: Final answer
    x = 29,450.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.