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Finding the Third Proportional to 1,062 and 2,221

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Solution

The third proportional to 1,062 and 2,221 is: 4,644.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062 : 2,221 = 2,221 : x
  2. Step 2: Convert to fraction form
    1,062/2,221 = 2,221/x
  3. Step 3: Cross multiply
    1,062x = 2,221 × 2,221
  4. Step 4: Simplify right side
    1,062x = 4,932,841
  5. Step 5: Solve for x
    x = 4,932,841/1,062
  6. Step 6: Final answer
    x = 4,644.86

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.