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Finding the Third Proportional to 175.38 and 412.75

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Solution

The third proportional to 175.38 and 412.75 is: 971.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.38 : 412.75 = 412.75 : x
  2. Step 2: Convert to fraction form
    175.38/412.75 = 412.75/x
  3. Step 3: Cross multiply
    175.38x = 412.75 × 412.75
  4. Step 4: Simplify right side
    175.38x = 170,362.56
  5. Step 5: Solve for x
    x = 170,362.56/175.38
  6. Step 6: Final answer
    x = 971.42

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.