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Finding the Third Proportional to 3,929,792,178 and 8,522,640,069

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Solution

The third proportional to 3,929,792,178 and 8,522,640,069 is: 18,483,265,896.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,792,178 : 8,522,640,069 = 8,522,640,069 : x
  2. Step 2: Convert to fraction form
    3,929,792,178/8,522,640,069 = 8,522,640,069/x
  3. Step 3: Cross multiply
    3,929,792,178x = 8,522,640,069 × 8,522,640,069
  4. Step 4: Simplify right side
    3,929,792,178x = 72,635,393,745,724,325,888
  5. Step 5: Solve for x
    x = 72,635,393,745,724,325,888/3,929,792,178
  6. Step 6: Final answer
    x = 18,483,265,896.95

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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.