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Finding the Third Proportional to 3,994,328,821.25 and 8,683,911,951.50

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Solution

The third proportional to 3,994,328,821.25 and 8,683,911,951.50 is: 18,879,348,735.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994,328,821.25 : 8,683,911,951.50 = 8,683,911,951.50 : x
  2. Step 2: Convert to fraction form
    3,994,328,821.25/8,683,911,951.50 = 8,683,911,951.50/x
  3. Step 3: Cross multiply
    3,994,328,821.25x = 8,683,911,951.50 × 8,683,911,951.50
  4. Step 4: Simplify right side
    3,994,328,821.25x = 75,410,326,781,404,545,024
  5. Step 5: Solve for x
    x = 75,410,326,781,404,545,024/3,994,328,821.25
  6. Step 6: Final answer
    x = 18,879,348,735.69

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.