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Finding the Third Proportional to 5,978 and 9,507

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Solution

The third proportional to 5,978 and 9,507 is: 15,119.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978 : 9,507 = 9,507 : x
  2. Step 2: Convert to fraction form
    5,978/9,507 = 9,507/x
  3. Step 3: Cross multiply
    5,978x = 9,507 × 9,507
  4. Step 4: Simplify right side
    5,978x = 90,383,049
  5. Step 5: Solve for x
    x = 90,383,049/5,978
  6. Step 6: Final answer
    x = 15,119.28

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.