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Finding the Third Proportional to 1,242,651,351 and 1,929,453,120

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Solution

The third proportional to 1,242,651,351 and 1,929,453,120 is: 2,995,843,797.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,651,351 : 1,929,453,120 = 1,929,453,120 : x
  2. Step 2: Convert to fraction form
    1,242,651,351/1,929,453,120 = 1,929,453,120/x
  3. Step 3: Cross multiply
    1,242,651,351x = 1,929,453,120 × 1,929,453,120
  4. Step 4: Simplify right side
    1,242,651,351x = 3,722,789,342,277,734,400
  5. Step 5: Solve for x
    x = 3,722,789,342,277,734,400/1,242,651,351
  6. Step 6: Final answer
    x = 2,995,843,797.44

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.