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Finding the Third Proportional to 7,568.25 and 11,748.75

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Solution

The third proportional to 7,568.25 and 11,748.75 is: 18,238.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,568.25 : 11,748.75 = 11,748.75 : x
  2. Step 2: Convert to fraction form
    7,568.25/11,748.75 = 11,748.75/x
  3. Step 3: Cross multiply
    7,568.25x = 11,748.75 × 11,748.75
  4. Step 4: Simplify right side
    7,568.25x = 138,033,126.56
  5. Step 5: Solve for x
    x = 138,033,126.56/7,568.25
  6. Step 6: Final answer
    x = 18,238.45

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.