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Finding the Third Proportional to 4,738,378 and 6,929,855

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Solution

The third proportional to 4,738,378 and 6,929,855 is: 10,134,879.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,738,378 : 6,929,855 = 6,929,855 : x
  2. Step 2: Convert to fraction form
    4,738,378/6,929,855 = 6,929,855/x
  3. Step 3: Cross multiply
    4,738,378x = 6,929,855 × 6,929,855
  4. Step 4: Simplify right side
    4,738,378x = 48,022,890,321,025
  5. Step 5: Solve for x
    x = 48,022,890,321,025/4,738,378
  6. Step 6: Final answer
    x = 10,134,879.56

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.