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Finding the Third Proportional to 225.13 and 494.63

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Solution

The third proportional to 225.13 and 494.63 is: 1,086.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.13 : 494.63 = 494.63 : x
  2. Step 2: Convert to fraction form
    225.13/494.63 = 494.63/x
  3. Step 3: Cross multiply
    225.13x = 494.63 × 494.63
  4. Step 4: Simplify right side
    225.13x = 244,653.89
  5. Step 5: Solve for x
    x = 244,653.89/225.13
  6. Step 6: Final answer
    x = 1,086.75

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.