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Finding the Third Proportional to 2,190.38 and 4,325.06

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Solution

The third proportional to 2,190.38 and 4,325.06 is: 8,540.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.38 : 4,325.06 = 4,325.06 : x
  2. Step 2: Convert to fraction form
    2,190.38/4,325.06 = 4,325.06/x
  3. Step 3: Cross multiply
    2,190.38x = 4,325.06 × 4,325.06
  4. Step 4: Simplify right side
    2,190.38x = 18,706,165.63
  5. Step 5: Solve for x
    x = 18,706,165.63/2,190.38
  6. Step 6: Final answer
    x = 8,540.17

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.