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Finding the Third Proportional to 475.22 and 906.38

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Solution

The third proportional to 475.22 and 906.38 is: 1,728.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.22 : 906.38 = 906.38 : x
  2. Step 2: Convert to fraction form
    475.22/906.38 = 906.38/x
  3. Step 3: Cross multiply
    475.22x = 906.38 × 906.38
  4. Step 4: Simplify right side
    475.22x = 821,515.64
  5. Step 5: Solve for x
    x = 821,515.64/475.22
  6. Step 6: Final answer
    x = 1,728.71

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.