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Finding the Third Proportional to 8,603,965,326 and 18,515,475,210

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Solution

The third proportional to 8,603,965,326 and 18,515,475,210 is: 39,844,747,074.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603,965,326 : 18,515,475,210 = 18,515,475,210 : x
  2. Step 2: Convert to fraction form
    8,603,965,326/18,515,475,210 = 18,515,475,210/x
  3. Step 3: Cross multiply
    8,603,965,326x = 18,515,475,210 × 18,515,475,210
  4. Step 4: Simplify right side
    8,603,965,326x = 342,822,822,252,124,569,600
  5. Step 5: Solve for x
    x = 342,822,822,252,124,569,600/8,603,965,326
  6. Step 6: Final answer
    x = 39,844,747,074.49

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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.