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Finding the Third Proportional to 1,889 and 2,873

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Solution

The third proportional to 1,889 and 2,873 is: 4,369.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889 : 2,873 = 2,873 : x
  2. Step 2: Convert to fraction form
    1,889/2,873 = 2,873/x
  3. Step 3: Cross multiply
    1,889x = 2,873 × 2,873
  4. Step 4: Simplify right side
    1,889x = 8,254,129
  5. Step 5: Solve for x
    x = 8,254,129/1,889
  6. Step 6: Final answer
    x = 4,369.58

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.