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Finding the Third Proportional to 254 and 471.25

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Solution

The third proportional to 254 and 471.25 is: 874.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    254 : 471.25 = 471.25 : x
  2. Step 2: Convert to fraction form
    254/471.25 = 471.25/x
  3. Step 3: Cross multiply
    254x = 471.25 × 471.25
  4. Step 4: Simplify right side
    254x = 222,076.56
  5. Step 5: Solve for x
    x = 222,076.56/254
  6. Step 6: Final answer
    x = 874.32

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.