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Finding the Third Proportional to 17,512 and 26,207

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Solution

The third proportional to 17,512 and 26,207 is: 39,219.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,512 : 26,207 = 26,207 : x
  2. Step 2: Convert to fraction form
    17,512/26,207 = 26,207/x
  3. Step 3: Cross multiply
    17,512x = 26,207 × 26,207
  4. Step 4: Simplify right side
    17,512x = 686,806,849
  5. Step 5: Solve for x
    x = 686,806,849/17,512
  6. Step 6: Final answer
    x = 39,219.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.