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Finding the Third Proportional to 1,360 and 2,111

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Solution

The third proportional to 1,360 and 2,111 is: 3,276.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360 : 2,111 = 2,111 : x
  2. Step 2: Convert to fraction form
    1,360/2,111 = 2,111/x
  3. Step 3: Cross multiply
    1,360x = 2,111 × 2,111
  4. Step 4: Simplify right side
    1,360x = 4,456,321
  5. Step 5: Solve for x
    x = 4,456,321/1,360
  6. Step 6: Final answer
    x = 3,276.71

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.