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Finding the Third Proportional to 4,636,605 and 9,958,794

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Solution

The third proportional to 4,636,605 and 9,958,794 is: 21,390,128.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,636,605 : 9,958,794 = 9,958,794 : x
  2. Step 2: Convert to fraction form
    4,636,605/9,958,794 = 9,958,794/x
  3. Step 3: Cross multiply
    4,636,605x = 9,958,794 × 9,958,794
  4. Step 4: Simplify right side
    4,636,605x = 99,177,577,934,436
  5. Step 5: Solve for x
    x = 99,177,577,934,436/4,636,605
  6. Step 6: Final answer
    x = 21,390,128.75

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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.