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Finding the Third Proportional to 202 and 451.25

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Solution

The third proportional to 202 and 451.25 is: 1,008.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202 : 451.25 = 451.25 : x
  2. Step 2: Convert to fraction form
    202/451.25 = 451.25/x
  3. Step 3: Cross multiply
    202x = 451.25 × 451.25
  4. Step 4: Simplify right side
    202x = 203,626.56
  5. Step 5: Solve for x
    x = 203,626.56/202
  6. Step 6: Final answer
    x = 1,008.05

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.