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Finding the Third Proportional to 1,874.25 and 4,115.81

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Solution

The third proportional to 1,874.25 and 4,115.81 is: 9,038.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.25 : 4,115.81 = 4,115.81 : x
  2. Step 2: Convert to fraction form
    1,874.25/4,115.81 = 4,115.81/x
  3. Step 3: Cross multiply
    1,874.25x = 4,115.81 × 4,115.81
  4. Step 4: Simplify right side
    1,874.25x = 16,939,912.54
  5. Step 5: Solve for x
    x = 16,939,912.54/1,874.25
  6. Step 6: Final answer
    x = 9,038.24

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.