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Finding the Third Proportional to 1,155.94 and 2,517.19

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Solution

The third proportional to 1,155.94 and 2,517.19 is: 5,481.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.94 : 2,517.19 = 2,517.19 : x
  2. Step 2: Convert to fraction form
    1,155.94/2,517.19 = 2,517.19/x
  3. Step 3: Cross multiply
    1,155.94x = 2,517.19 × 2,517.19
  4. Step 4: Simplify right side
    1,155.94x = 6,336,232.91
  5. Step 5: Solve for x
    x = 6,336,232.91/1,155.94
  6. Step 6: Final answer
    x = 5,481.47

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.