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Finding the Third Proportional to 1,518.38 and 1,995.75

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Solution

The third proportional to 1,518.38 and 1,995.75 is: 2,623.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.38 : 1,995.75 = 1,995.75 : x
  2. Step 2: Convert to fraction form
    1,518.38/1,995.75 = 1,995.75/x
  3. Step 3: Cross multiply
    1,518.38x = 1,995.75 × 1,995.75
  4. Step 4: Simplify right side
    1,518.38x = 3,983,018.06
  5. Step 5: Solve for x
    x = 3,983,018.06/1,518.38
  6. Step 6: Final answer
    x = 2,623.21

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.