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Finding the Third Proportional to 4,279,432 and 6,647,730

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Solution

The third proportional to 4,279,432 and 6,647,730 is: 10,326,677.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279,432 : 6,647,730 = 6,647,730 : x
  2. Step 2: Convert to fraction form
    4,279,432/6,647,730 = 6,647,730/x
  3. Step 3: Cross multiply
    4,279,432x = 6,647,730 × 6,647,730
  4. Step 4: Simplify right side
    4,279,432x = 44,192,314,152,900
  5. Step 5: Solve for x
    x = 44,192,314,152,900/4,279,432
  6. Step 6: Final answer
    x = 10,326,677.50

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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.