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Finding the Third Proportional to 2,141.44 and 4,620.38

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Solution

The third proportional to 2,141.44 and 4,620.38 is: 9,968.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141.44 : 4,620.38 = 4,620.38 : x
  2. Step 2: Convert to fraction form
    2,141.44/4,620.38 = 4,620.38/x
  3. Step 3: Cross multiply
    2,141.44x = 4,620.38 × 4,620.38
  4. Step 4: Simplify right side
    2,141.44x = 21,347,865.14
  5. Step 5: Solve for x
    x = 21,347,865.14/2,141.44
  6. Step 6: Final answer
    x = 9,968.94

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.