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Finding the Third Proportional to 850.31 and 1,107.56

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Solution

The third proportional to 850.31 and 1,107.56 is: 1,442.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    850.31 : 1,107.56 = 1,107.56 : x
  2. Step 2: Convert to fraction form
    850.31/1,107.56 = 1,107.56/x
  3. Step 3: Cross multiply
    850.31x = 1,107.56 × 1,107.56
  4. Step 4: Simplify right side
    850.31x = 1,226,694.69
  5. Step 5: Solve for x
    x = 1,226,694.69/850.31
  6. Step 6: Final answer
    x = 1,442.64

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.