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Finding the Third Proportional to 1,272.94 and 2,733.19

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Solution

The third proportional to 1,272.94 and 2,733.19 is: 5,868.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272.94 : 2,733.19 = 2,733.19 : x
  2. Step 2: Convert to fraction form
    1,272.94/2,733.19 = 2,733.19/x
  3. Step 3: Cross multiply
    1,272.94x = 2,733.19 × 2,733.19
  4. Step 4: Simplify right side
    1,272.94x = 7,470,313.91
  5. Step 5: Solve for x
    x = 7,470,313.91/1,272.94
  6. Step 6: Final answer
    x = 5,868.56

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.