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Finding the Third Proportional to 1,646 and 4,283

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Solution

The third proportional to 1,646 and 4,283 is: 11,144.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646 : 4,283 = 4,283 : x
  2. Step 2: Convert to fraction form
    1,646/4,283 = 4,283/x
  3. Step 3: Cross multiply
    1,646x = 4,283 × 4,283
  4. Step 4: Simplify right side
    1,646x = 18,344,089
  5. Step 5: Solve for x
    x = 18,344,089/1,646
  6. Step 6: Final answer
    x = 11,144.65

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.