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Finding the Third Proportional to 2,169 and 3,096.75

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Solution

The third proportional to 2,169 and 3,096.75 is: 4,421.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169 : 3,096.75 = 3,096.75 : x
  2. Step 2: Convert to fraction form
    2,169/3,096.75 = 3,096.75/x
  3. Step 3: Cross multiply
    2,169x = 3,096.75 × 3,096.75
  4. Step 4: Simplify right side
    2,169x = 9,589,860.56
  5. Step 5: Solve for x
    x = 9,589,860.56/2,169
  6. Step 6: Final answer
    x = 4,421.33

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.