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Finding the Third Proportional to 4,627,387 and 9,965,306

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Solution

The third proportional to 4,627,387 and 9,965,306 is: 21,460,777.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,627,387 : 9,965,306 = 9,965,306 : x
  2. Step 2: Convert to fraction form
    4,627,387/9,965,306 = 9,965,306/x
  3. Step 3: Cross multiply
    4,627,387x = 9,965,306 × 9,965,306
  4. Step 4: Simplify right side
    4,627,387x = 99,307,323,673,636
  5. Step 5: Solve for x
    x = 99,307,323,673,636/4,627,387
  6. Step 6: Final answer
    x = 21,460,777.69

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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.