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Finding the Third Proportional to 1,900.88 and 4,206.75

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Solution

The third proportional to 1,900.88 and 4,206.75 is: 9,309.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900.88 : 4,206.75 = 4,206.75 : x
  2. Step 2: Convert to fraction form
    1,900.88/4,206.75 = 4,206.75/x
  3. Step 3: Cross multiply
    1,900.88x = 4,206.75 × 4,206.75
  4. Step 4: Simplify right side
    1,900.88x = 17,696,745.56
  5. Step 5: Solve for x
    x = 17,696,745.56/1,900.88
  6. Step 6: Final answer
    x = 9,309.79

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.