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Finding the Third Proportional to 28,558,728 and 62,786,156

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Solution

The third proportional to 28,558,728 and 62,786,156 is: 138,034,907.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558,728 : 62,786,156 = 62,786,156 : x
  2. Step 2: Convert to fraction form
    28,558,728/62,786,156 = 62,786,156/x
  3. Step 3: Cross multiply
    28,558,728x = 62,786,156 × 62,786,156
  4. Step 4: Simplify right side
    28,558,728x = 3,942,101,385,256,336
  5. Step 5: Solve for x
    x = 3,942,101,385,256,336/28,558,728
  6. Step 6: Final answer
    x = 138,034,907.76

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.