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Finding the Third Proportional to 1,886 and 4,042

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Solution

The third proportional to 1,886 and 4,042 is: 8,662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886 : 4,042 = 4,042 : x
  2. Step 2: Convert to fraction form
    1,886/4,042 = 4,042/x
  3. Step 3: Cross multiply
    1,886x = 4,042 × 4,042
  4. Step 4: Simplify right side
    1,886x = 16,337,764
  5. Step 5: Solve for x
    x = 16,337,764/1,886
  6. Step 6: Final answer
    x = 8,662.65

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.