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Finding the Third Proportional to 17,298 and 19,842

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Solution

The third proportional to 17,298 and 19,842 is: 22,760.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,298 : 19,842 = 19,842 : x
  2. Step 2: Convert to fraction form
    17,298/19,842 = 19,842/x
  3. Step 3: Cross multiply
    17,298x = 19,842 × 19,842
  4. Step 4: Simplify right side
    17,298x = 393,704,964
  5. Step 5: Solve for x
    x = 393,704,964/17,298
  6. Step 6: Final answer
    x = 22,760.14

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.