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Finding the Third Proportional to 3,169,019.75 and 6,918,755.50

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Solution

The third proportional to 3,169,019.75 and 6,918,755.50 is: 15,105,357.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169,019.75 : 6,918,755.50 = 6,918,755.50 : x
  2. Step 2: Convert to fraction form
    3,169,019.75/6,918,755.50 = 6,918,755.50/x
  3. Step 3: Cross multiply
    3,169,019.75x = 6,918,755.50 × 6,918,755.50
  4. Step 4: Simplify right side
    3,169,019.75x = 47,869,177,668,780.25
  5. Step 5: Solve for x
    x = 47,869,177,668,780.25/3,169,019.75
  6. Step 6: Final answer
    x = 15,105,357.95

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.