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Finding the Third Proportional to 17,040 and 36,636

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Solution

The third proportional to 17,040 and 36,636 is: 78,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,040 : 36,636 = 36,636 : x
  2. Step 2: Convert to fraction form
    17,040/36,636 = 36,636/x
  3. Step 3: Cross multiply
    17,040x = 36,636 × 36,636
  4. Step 4: Simplify right side
    17,040x = 1,342,196,496
  5. Step 5: Solve for x
    x = 1,342,196,496/17,040
  6. Step 6: Final answer
    x = 78,767.40

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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.