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Finding the Third Proportional to 867.94 and 1,344.09

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Solution

The third proportional to 867.94 and 1,344.09 is: 2,081.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    867.94 : 1,344.09 = 1,344.09 : x
  2. Step 2: Convert to fraction form
    867.94/1,344.09 = 1,344.09/x
  3. Step 3: Cross multiply
    867.94x = 1,344.09 × 1,344.09
  4. Step 4: Simplify right side
    867.94x = 1,806,588.01
  5. Step 5: Solve for x
    x = 1,806,588.01/867.94
  6. Step 6: Final answer
    x = 2,081.47

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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.