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Finding the Third Proportional to 989.44 and 2,093.06

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Solution

The third proportional to 989.44 and 2,093.06 is: 4,427.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    989.44 : 2,093.06 = 2,093.06 : x
  2. Step 2: Convert to fraction form
    989.44/2,093.06 = 2,093.06/x
  3. Step 3: Cross multiply
    989.44x = 2,093.06 × 2,093.06
  4. Step 4: Simplify right side
    989.44x = 4,380,910.63
  5. Step 5: Solve for x
    x = 4,380,910.63/989.44
  6. Step 6: Final answer
    x = 4,427.68

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.