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Finding the Third Proportional to 225.50 and 529.25

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Solution

The third proportional to 225.50 and 529.25 is: 1,242.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.50 : 529.25 = 529.25 : x
  2. Step 2: Convert to fraction form
    225.50/529.25 = 529.25/x
  3. Step 3: Cross multiply
    225.50x = 529.25 × 529.25
  4. Step 4: Simplify right side
    225.50x = 280,105.56
  5. Step 5: Solve for x
    x = 280,105.56/225.50
  6. Step 6: Final answer
    x = 1,242.15

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.