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Finding the Third Proportional to 467.25 and 728.25

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Solution

The third proportional to 467.25 and 728.25 is: 1,135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.25 : 728.25 = 728.25 : x
  2. Step 2: Convert to fraction form
    467.25/728.25 = 728.25/x
  3. Step 3: Cross multiply
    467.25x = 728.25 × 728.25
  4. Step 4: Simplify right side
    467.25x = 530,348.06
  5. Step 5: Solve for x
    x = 530,348.06/467.25
  6. Step 6: Final answer
    x = 1,135.04

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.