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Finding the Third Proportional to 3,370,857.75 and 7,428,840.75

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Solution

The third proportional to 3,370,857.75 and 7,428,840.75 is: 16,371,997.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370,857.75 : 7,428,840.75 = 7,428,840.75 : x
  2. Step 2: Convert to fraction form
    3,370,857.75/7,428,840.75 = 7,428,840.75/x
  3. Step 3: Cross multiply
    3,370,857.75x = 7,428,840.75 × 7,428,840.75
  4. Step 4: Simplify right side
    3,370,857.75x = 55,187,674,888,860.56
  5. Step 5: Solve for x
    x = 55,187,674,888,860.56/3,370,857.75
  6. Step 6: Final answer
    x = 16,371,997.57

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.