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Finding the Third Proportional to 1,982 and 5,207

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Solution

The third proportional to 1,982 and 5,207 is: 13,679.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982 : 5,207 = 5,207 : x
  2. Step 2: Convert to fraction form
    1,982/5,207 = 5,207/x
  3. Step 3: Cross multiply
    1,982x = 5,207 × 5,207
  4. Step 4: Simplify right side
    1,982x = 27,112,849
  5. Step 5: Solve for x
    x = 27,112,849/1,982
  6. Step 6: Final answer
    x = 13,679.54

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These problems maintain the same ratio (2.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.