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Finding the Third Proportional to 10,860.75 and 11,994.75

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Solution

The third proportional to 10,860.75 and 11,994.75 is: 13,247.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860.75 : 11,994.75 = 11,994.75 : x
  2. Step 2: Convert to fraction form
    10,860.75/11,994.75 = 11,994.75/x
  3. Step 3: Cross multiply
    10,860.75x = 11,994.75 × 11,994.75
  4. Step 4: Simplify right side
    10,860.75x = 143,874,027.56
  5. Step 5: Solve for x
    x = 143,874,027.56/10,860.75
  6. Step 6: Final answer
    x = 13,247.15

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.