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Finding the Third Proportional to 2,499.75 and 3,390.75

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Solution

The third proportional to 2,499.75 and 3,390.75 is: 4,599.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,499.75 : 3,390.75 = 3,390.75 : x
  2. Step 2: Convert to fraction form
    2,499.75/3,390.75 = 3,390.75/x
  3. Step 3: Cross multiply
    2,499.75x = 3,390.75 × 3,390.75
  4. Step 4: Simplify right side
    2,499.75x = 11,497,185.56
  5. Step 5: Solve for x
    x = 11,497,185.56/2,499.75
  6. Step 6: Final answer
    x = 4,599.33

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.