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Finding the Third Proportional to 12,396 and 26,643

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Solution

The third proportional to 12,396 and 26,643 is: 57,264.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,396 : 26,643 = 26,643 : x
  2. Step 2: Convert to fraction form
    12,396/26,643 = 26,643/x
  3. Step 3: Cross multiply
    12,396x = 26,643 × 26,643
  4. Step 4: Simplify right side
    12,396x = 709,849,449
  5. Step 5: Solve for x
    x = 709,849,449/12,396
  6. Step 6: Final answer
    x = 57,264.40

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.