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Finding the Third Proportional to 9,213,837 and 19,840,476

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Solution

The third proportional to 9,213,837 and 19,840,476 is: 42,723,187.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,213,837 : 19,840,476 = 19,840,476 : x
  2. Step 2: Convert to fraction form
    9,213,837/19,840,476 = 19,840,476/x
  3. Step 3: Cross multiply
    9,213,837x = 19,840,476 × 19,840,476
  4. Step 4: Simplify right side
    9,213,837x = 393,644,487,906,576
  5. Step 5: Solve for x
    x = 393,644,487,906,576/9,213,837
  6. Step 6: Final answer
    x = 42,723,187.73

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.