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Finding the Third Proportional to 3,145,078 and 6,879,005

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Solution

The third proportional to 3,145,078 and 6,879,005 is: 15,045,957.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145,078 : 6,879,005 = 6,879,005 : x
  2. Step 2: Convert to fraction form
    3,145,078/6,879,005 = 6,879,005/x
  3. Step 3: Cross multiply
    3,145,078x = 6,879,005 × 6,879,005
  4. Step 4: Simplify right side
    3,145,078x = 47,320,709,790,025
  5. Step 5: Solve for x
    x = 47,320,709,790,025/3,145,078
  6. Step 6: Final answer
    x = 15,045,957.46

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.