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Finding the Third Proportional to 52.75 and 75.25

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Solution

The third proportional to 52.75 and 75.25 is: 107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52.75 : 75.25 = 75.25 : x
  2. Step 2: Convert to fraction form
    52.75/75.25 = 75.25/x
  3. Step 3: Cross multiply
    52.75x = 75.25 × 75.25
  4. Step 4: Simplify right side
    52.75x = 5,662.56
  5. Step 5: Solve for x
    x = 5,662.56/52.75
  6. Step 6: Final answer
    x = 107.35

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.