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Finding the Third Proportional to 4,800 and 7,299.75

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Solution

The third proportional to 4,800 and 7,299.75 is: 11,101.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,800 : 7,299.75 = 7,299.75 : x
  2. Step 2: Convert to fraction form
    4,800/7,299.75 = 7,299.75/x
  3. Step 3: Cross multiply
    4,800x = 7,299.75 × 7,299.75
  4. Step 4: Simplify right side
    4,800x = 53,286,350.06
  5. Step 5: Solve for x
    x = 53,286,350.06/4,800
  6. Step 6: Final answer
    x = 11,101.32

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.