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Finding the Third Proportional to 849 and 1,283

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Solution

The third proportional to 849 and 1,283 is: 1,938.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    849 : 1,283 = 1,283 : x
  2. Step 2: Convert to fraction form
    849/1,283 = 1,283/x
  3. Step 3: Cross multiply
    849x = 1,283 × 1,283
  4. Step 4: Simplify right side
    849x = 1,646,089
  5. Step 5: Solve for x
    x = 1,646,089/849
  6. Step 6: Final answer
    x = 1,938.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.