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Finding the Third Proportional to 921.75 and 2,233.13

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Solution

The third proportional to 921.75 and 2,233.13 is: 5,410.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    921.75 : 2,233.13 = 2,233.13 : x
  2. Step 2: Convert to fraction form
    921.75/2,233.13 = 2,233.13/x
  3. Step 3: Cross multiply
    921.75x = 2,233.13 × 2,233.13
  4. Step 4: Simplify right side
    921.75x = 4,986,847.27
  5. Step 5: Solve for x
    x = 4,986,847.27/921.75
  6. Step 6: Final answer
    x = 5,410.20

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.