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Finding the Third Proportional to 1,948 and 2,889

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Solution

The third proportional to 1,948 and 2,889 is: 4,284.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948 : 2,889 = 2,889 : x
  2. Step 2: Convert to fraction form
    1,948/2,889 = 2,889/x
  3. Step 3: Cross multiply
    1,948x = 2,889 × 2,889
  4. Step 4: Simplify right side
    1,948x = 8,346,321
  5. Step 5: Solve for x
    x = 8,346,321/1,948
  6. Step 6: Final answer
    x = 4,284.56

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.