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Finding the Third Proportional to 693.94 and 1,518.38

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Solution

The third proportional to 693.94 and 1,518.38 is: 3,322.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    693.94 : 1,518.38 = 1,518.38 : x
  2. Step 2: Convert to fraction form
    693.94/1,518.38 = 1,518.38/x
  3. Step 3: Cross multiply
    693.94x = 1,518.38 × 1,518.38
  4. Step 4: Simplify right side
    693.94x = 2,305,462.64
  5. Step 5: Solve for x
    x = 2,305,462.64/693.94
  6. Step 6: Final answer
    x = 3,322.29

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.