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Finding the Third Proportional to 36,486 and 79,830

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Solution

The third proportional to 36,486 and 79,830 is: 174,665.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,486 : 79,830 = 79,830 : x
  2. Step 2: Convert to fraction form
    36,486/79,830 = 79,830/x
  3. Step 3: Cross multiply
    36,486x = 79,830 × 79,830
  4. Step 4: Simplify right side
    36,486x = 6,372,828,900
  5. Step 5: Solve for x
    x = 6,372,828,900/36,486
  6. Step 6: Final answer
    x = 174,665.05

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.