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Finding the Third Proportional to 18,959,956 and 28,639,187

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Solution

The third proportional to 18,959,956 and 28,639,187 is: 43,259,753.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,959,956 : 28,639,187 = 28,639,187 : x
  2. Step 2: Convert to fraction form
    18,959,956/28,639,187 = 28,639,187/x
  3. Step 3: Cross multiply
    18,959,956x = 28,639,187 × 28,639,187
  4. Step 4: Simplify right side
    18,959,956x = 820,203,032,020,969
  5. Step 5: Solve for x
    x = 820,203,032,020,969/18,959,956
  6. Step 6: Final answer
    x = 43,259,753.98

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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.