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Finding the Third Proportional to 3,939,589.41 and 8,626,517.72

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Solution

The third proportional to 3,939,589.41 and 8,626,517.72 is: 18,889,483.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,589.41 : 8,626,517.72 = 8,626,517.72 : x
  2. Step 2: Convert to fraction form
    3,939,589.41/8,626,517.72 = 8,626,517.72/x
  3. Step 3: Cross multiply
    3,939,589.41x = 8,626,517.72 × 8,626,517.72
  4. Step 4: Simplify right side
    3,939,589.41x = 74,416,807,951,907.70
  5. Step 5: Solve for x
    x = 74,416,807,951,907.70/3,939,589.41
  6. Step 6: Final answer
    x = 18,889,483.21

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.