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Finding the Third Proportional to 775.69 and 1,203.19

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Solution

The third proportional to 775.69 and 1,203.19 is: 1,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    775.69 : 1,203.19 = 1,203.19 : x
  2. Step 2: Convert to fraction form
    775.69/1,203.19 = 1,203.19/x
  3. Step 3: Cross multiply
    775.69x = 1,203.19 × 1,203.19
  4. Step 4: Simplify right side
    775.69x = 1,447,660.16
  5. Step 5: Solve for x
    x = 1,447,660.16/775.69
  6. Step 6: Final answer
    x = 1,866.29

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.