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Finding the Third Proportional to 4,342,920 and 9,542,415

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Solution

The third proportional to 4,342,920 and 9,542,415 is: 20,966,926.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,342,920 : 9,542,415 = 9,542,415 : x
  2. Step 2: Convert to fraction form
    4,342,920/9,542,415 = 9,542,415/x
  3. Step 3: Cross multiply
    4,342,920x = 9,542,415 × 9,542,415
  4. Step 4: Simplify right side
    4,342,920x = 91,057,684,032,225
  5. Step 5: Solve for x
    x = 91,057,684,032,225/4,342,920
  6. Step 6: Final answer
    x = 20,966,926.41

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.