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Finding the Third Proportional to 4,192,479 and 9,178,839

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Solution

The third proportional to 4,192,479 and 9,178,839 is: 20,095,768.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192,479 : 9,178,839 = 9,178,839 : x
  2. Step 2: Convert to fraction form
    4,192,479/9,178,839 = 9,178,839/x
  3. Step 3: Cross multiply
    4,192,479x = 9,178,839 × 9,178,839
  4. Step 4: Simplify right side
    4,192,479x = 84,251,085,387,921
  5. Step 5: Solve for x
    x = 84,251,085,387,921/4,192,479
  6. Step 6: Final answer
    x = 20,095,768.01

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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.