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Finding the Third Proportional to 372 and 659.25

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Solution

The third proportional to 372 and 659.25 is: 1,168.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    372 : 659.25 = 659.25 : x
  2. Step 2: Convert to fraction form
    372/659.25 = 659.25/x
  3. Step 3: Cross multiply
    372x = 659.25 × 659.25
  4. Step 4: Simplify right side
    372x = 434,610.56
  5. Step 5: Solve for x
    x = 434,610.56/372
  6. Step 6: Final answer
    x = 1,168.31

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.