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Finding the Third Proportional to 4,429,718 and 6,939,855

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Solution

The third proportional to 4,429,718 and 6,939,855 is: 10,872,382.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,429,718 : 6,939,855 = 6,939,855 : x
  2. Step 2: Convert to fraction form
    4,429,718/6,939,855 = 6,939,855/x
  3. Step 3: Cross multiply
    4,429,718x = 6,939,855 × 6,939,855
  4. Step 4: Simplify right side
    4,429,718x = 48,161,587,421,025
  5. Step 5: Solve for x
    x = 48,161,587,421,025/4,429,718
  6. Step 6: Final answer
    x = 10,872,382.26

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.