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Finding the Third Proportional to 7,560.75 and 9,642.75

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Solution

The third proportional to 7,560.75 and 9,642.75 is: 12,298.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,560.75 : 9,642.75 = 9,642.75 : x
  2. Step 2: Convert to fraction form
    7,560.75/9,642.75 = 9,642.75/x
  3. Step 3: Cross multiply
    7,560.75x = 9,642.75 × 9,642.75
  4. Step 4: Simplify right side
    7,560.75x = 92,982,627.56
  5. Step 5: Solve for x
    x = 92,982,627.56/7,560.75
  6. Step 6: Final answer
    x = 12,298.07

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.