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Finding the Third Proportional to 372 and 611.25

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Solution

The third proportional to 372 and 611.25 is: 1,004.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    372 : 611.25 = 611.25 : x
  2. Step 2: Convert to fraction form
    372/611.25 = 611.25/x
  3. Step 3: Cross multiply
    372x = 611.25 × 611.25
  4. Step 4: Simplify right side
    372x = 373,626.56
  5. Step 5: Solve for x
    x = 373,626.56/372
  6. Step 6: Final answer
    x = 1,004.37

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.