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Finding the Third Proportional to 635.25 and 889.88

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Solution

The third proportional to 635.25 and 889.88 is: 1,246.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.25 : 889.88 = 889.88 : x
  2. Step 2: Convert to fraction form
    635.25/889.88 = 889.88/x
  3. Step 3: Cross multiply
    635.25x = 889.88 × 889.88
  4. Step 4: Simplify right side
    635.25x = 791,877.52
  5. Step 5: Solve for x
    x = 791,877.52/635.25
  6. Step 6: Final answer
    x = 1,246.56

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.