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Finding the Third Proportional to 5,211,794 and 7,972,685

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Solution

The third proportional to 5,211,794 and 7,972,685 is: 12,196,127.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211,794 : 7,972,685 = 7,972,685 : x
  2. Step 2: Convert to fraction form
    5,211,794/7,972,685 = 7,972,685/x
  3. Step 3: Cross multiply
    5,211,794x = 7,972,685 × 7,972,685
  4. Step 4: Simplify right side
    5,211,794x = 63,563,706,109,225
  5. Step 5: Solve for x
    x = 63,563,706,109,225/5,211,794
  6. Step 6: Final answer
    x = 12,196,127.88

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.