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Finding the Third Proportional to 1,999.69 and 2,927.81

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Solution

The third proportional to 1,999.69 and 2,927.81 is: 4,286.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999.69 : 2,927.81 = 2,927.81 : x
  2. Step 2: Convert to fraction form
    1,999.69/2,927.81 = 2,927.81/x
  3. Step 3: Cross multiply
    1,999.69x = 2,927.81 × 2,927.81
  4. Step 4: Simplify right side
    1,999.69x = 8,572,086.04
  5. Step 5: Solve for x
    x = 8,572,086.04/1,999.69
  6. Step 6: Final answer
    x = 4,286.71

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.