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Finding the Third Proportional to 372.09 and 799.88

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Solution

The third proportional to 372.09 and 799.88 is: 1,719.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.09 : 799.88 = 799.88 : x
  2. Step 2: Convert to fraction form
    372.09/799.88 = 799.88/x
  3. Step 3: Cross multiply
    372.09x = 799.88 × 799.88
  4. Step 4: Simplify right side
    372.09x = 639,800.02
  5. Step 5: Solve for x
    x = 639,800.02/372.09
  6. Step 6: Final answer
    x = 1,719.46

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.