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Finding the Third Proportional to 52,665 and 79,668

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Solution

The third proportional to 52,665 and 79,668 is: 120,516.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,665 : 79,668 = 79,668 : x
  2. Step 2: Convert to fraction form
    52,665/79,668 = 79,668/x
  3. Step 3: Cross multiply
    52,665x = 79,668 × 79,668
  4. Step 4: Simplify right side
    52,665x = 6,346,990,224
  5. Step 5: Solve for x
    x = 6,346,990,224/52,665
  6. Step 6: Final answer
    x = 120,516.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.