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Finding the Third Proportional to 7,965.84 and 11,967.75

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Solution

The third proportional to 7,965.84 and 11,967.75 is: 17,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.84 : 11,967.75 = 11,967.75 : x
  2. Step 2: Convert to fraction form
    7,965.84/11,967.75 = 11,967.75/x
  3. Step 3: Cross multiply
    7,965.84x = 11,967.75 × 11,967.75
  4. Step 4: Simplify right side
    7,965.84x = 143,227,040.06
  5. Step 5: Solve for x
    x = 143,227,040.06/7,965.84
  6. Step 6: Final answer
    x = 17,980.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.