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Finding the Third Proportional to 16,999 and 36,630

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Solution

The third proportional to 16,999 and 36,630 is: 78,931.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,999 : 36,630 = 36,630 : x
  2. Step 2: Convert to fraction form
    16,999/36,630 = 36,630/x
  3. Step 3: Cross multiply
    16,999x = 36,630 × 36,630
  4. Step 4: Simplify right side
    16,999x = 1,341,756,900
  5. Step 5: Solve for x
    x = 1,341,756,900/16,999
  6. Step 6: Final answer
    x = 78,931.52

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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.