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Finding the Third Proportional to 1,971 and 4,302

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Solution

The third proportional to 1,971 and 4,302 is: 9,389.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971 : 4,302 = 4,302 : x
  2. Step 2: Convert to fraction form
    1,971/4,302 = 4,302/x
  3. Step 3: Cross multiply
    1,971x = 4,302 × 4,302
  4. Step 4: Simplify right side
    1,971x = 18,507,204
  5. Step 5: Solve for x
    x = 18,507,204/1,971
  6. Step 6: Final answer
    x = 9,389.75

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.