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Finding the Third Proportional to 4,038,978 and 8,645,433

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Solution

The third proportional to 4,038,978 and 8,645,433 is: 18,505,550.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,038,978 : 8,645,433 = 8,645,433 : x
  2. Step 2: Convert to fraction form
    4,038,978/8,645,433 = 8,645,433/x
  3. Step 3: Cross multiply
    4,038,978x = 8,645,433 × 8,645,433
  4. Step 4: Simplify right side
    4,038,978x = 74,743,511,757,489
  5. Step 5: Solve for x
    x = 74,743,511,757,489/4,038,978
  6. Step 6: Final answer
    x = 18,505,550.60

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.