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Finding the Third Proportional to 1,927.13 and 2,729.81

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Solution

The third proportional to 1,927.13 and 2,729.81 is: 3,866.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.13 : 2,729.81 = 2,729.81 : x
  2. Step 2: Convert to fraction form
    1,927.13/2,729.81 = 2,729.81/x
  3. Step 3: Cross multiply
    1,927.13x = 2,729.81 × 2,729.81
  4. Step 4: Simplify right side
    1,927.13x = 7,451,876.29
  5. Step 5: Solve for x
    x = 7,451,876.29/1,927.13
  6. Step 6: Final answer
    x = 3,866.84

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.