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Finding the Third Proportional to 775.13 and 2,106.56

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Solution

The third proportional to 775.13 and 2,106.56 is: 5,725.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    775.13 : 2,106.56 = 2,106.56 : x
  2. Step 2: Convert to fraction form
    775.13/2,106.56 = 2,106.56/x
  3. Step 3: Cross multiply
    775.13x = 2,106.56 × 2,106.56
  4. Step 4: Simplify right side
    775.13x = 4,437,605.57
  5. Step 5: Solve for x
    x = 4,437,605.57/775.13
  6. Step 6: Final answer
    x = 5,725.02

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Why These Related Problems?

These problems maintain the same ratio (2.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.