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Finding the Third Proportional to 20,874,186 and 31,599,990

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Solution

The third proportional to 20,874,186 and 31,599,990 is: 47,837,044.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,874,186 : 31,599,990 = 31,599,990 : x
  2. Step 2: Convert to fraction form
    20,874,186/31,599,990 = 31,599,990/x
  3. Step 3: Cross multiply
    20,874,186x = 31,599,990 × 31,599,990
  4. Step 4: Simplify right side
    20,874,186x = 998,559,368,000,100
  5. Step 5: Solve for x
    x = 998,559,368,000,100/20,874,186
  6. Step 6: Final answer
    x = 47,837,044.66

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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.