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Finding the Third Proportional to 942.75 and 2,005.31

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Solution

The third proportional to 942.75 and 2,005.31 is: 4,265.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    942.75 : 2,005.31 = 2,005.31 : x
  2. Step 2: Convert to fraction form
    942.75/2,005.31 = 2,005.31/x
  3. Step 3: Cross multiply
    942.75x = 2,005.31 × 2,005.31
  4. Step 4: Simplify right side
    942.75x = 4,021,278.22
  5. Step 5: Solve for x
    x = 4,021,278.22/942.75
  6. Step 6: Final answer
    x = 4,265.48

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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.