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Finding the Third Proportional to 1,338.94 and 2,883.42

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Solution

The third proportional to 1,338.94 and 2,883.42 is: 6,209.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338.94 : 2,883.42 = 2,883.42 : x
  2. Step 2: Convert to fraction form
    1,338.94/2,883.42 = 2,883.42/x
  3. Step 3: Cross multiply
    1,338.94x = 2,883.42 × 2,883.42
  4. Step 4: Simplify right side
    1,338.94x = 8,314,121.71
  5. Step 5: Solve for x
    x = 8,314,121.71/1,338.94
  6. Step 6: Final answer
    x = 6,209.49

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.