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Finding the Third Proportional to 13,428 and 17,262

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Solution

The third proportional to 13,428 and 17,262 is: 22,190.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428 : 17,262 = 17,262 : x
  2. Step 2: Convert to fraction form
    13,428/17,262 = 17,262/x
  3. Step 3: Cross multiply
    13,428x = 17,262 × 17,262
  4. Step 4: Simplify right side
    13,428x = 297,976,644
  5. Step 5: Solve for x
    x = 297,976,644/13,428
  6. Step 6: Final answer
    x = 22,190.69

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.