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Finding the Third Proportional to 16,992,220 and 36,691,987

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Solution

The third proportional to 16,992,220 and 36,691,987 is: 79,230,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,992,220 : 36,691,987 = 36,691,987 : x
  2. Step 2: Convert to fraction form
    16,992,220/36,691,987 = 36,691,987/x
  3. Step 3: Cross multiply
    16,992,220x = 36,691,987 × 36,691,987
  4. Step 4: Simplify right side
    16,992,220x = 1,346,301,910,008,169
  5. Step 5: Solve for x
    x = 1,346,301,910,008,169/16,992,220
  6. Step 6: Final answer
    x = 79,230,489.60

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.