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Finding the Third Proportional to 2,195.44 and 3,315.09

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Solution

The third proportional to 2,195.44 and 3,315.09 is: 5,005.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.44 : 3,315.09 = 3,315.09 : x
  2. Step 2: Convert to fraction form
    2,195.44/3,315.09 = 3,315.09/x
  3. Step 3: Cross multiply
    2,195.44x = 3,315.09 × 3,315.09
  4. Step 4: Simplify right side
    2,195.44x = 10,989,846.57
  5. Step 5: Solve for x
    x = 10,989,846.57/2,195.44
  6. Step 6: Final answer
    x = 5,005.77

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.