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Finding the Third Proportional to 393.19 and 963.14

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Solution

The third proportional to 393.19 and 963.14 is: 2,359.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    393.19 : 963.14 = 963.14 : x
  2. Step 2: Convert to fraction form
    393.19/963.14 = 963.14/x
  3. Step 3: Cross multiply
    393.19x = 963.14 × 963.14
  4. Step 4: Simplify right side
    393.19x = 927,639.86
  5. Step 5: Solve for x
    x = 927,639.86/393.19
  6. Step 6: Final answer
    x = 2,359.28

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Why These Related Problems?

These problems maintain the same ratio (2.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.