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Finding the Third Proportional to 188.25 and 401.44

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Solution

The third proportional to 188.25 and 401.44 is: 856.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.25 : 401.44 = 401.44 : x
  2. Step 2: Convert to fraction form
    188.25/401.44 = 401.44/x
  3. Step 3: Cross multiply
    188.25x = 401.44 × 401.44
  4. Step 4: Simplify right side
    188.25x = 161,152.07
  5. Step 5: Solve for x
    x = 161,152.07/188.25
  6. Step 6: Final answer
    x = 856.05

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.