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Finding the Third Proportional to 12,710 and 19,281

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Solution

The third proportional to 12,710 and 19,281 is: 29,249.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710 : 19,281 = 19,281 : x
  2. Step 2: Convert to fraction form
    12,710/19,281 = 19,281/x
  3. Step 3: Cross multiply
    12,710x = 19,281 × 19,281
  4. Step 4: Simplify right side
    12,710x = 371,756,961
  5. Step 5: Solve for x
    x = 371,756,961/12,710
  6. Step 6: Final answer
    x = 29,249.17

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.