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Finding the Third Proportional to 978 and 2,337

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Solution

The third proportional to 978 and 2,337 is: 5,584.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    978 : 2,337 = 2,337 : x
  2. Step 2: Convert to fraction form
    978/2,337 = 2,337/x
  3. Step 3: Cross multiply
    978x = 2,337 × 2,337
  4. Step 4: Simplify right side
    978x = 5,461,569
  5. Step 5: Solve for x
    x = 5,461,569/978
  6. Step 6: Final answer
    x = 5,584.43

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.