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Finding the Third Proportional to 2,116 and 4,368

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Solution

The third proportional to 2,116 and 4,368 is: 9,016.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116 : 4,368 = 4,368 : x
  2. Step 2: Convert to fraction form
    2,116/4,368 = 4,368/x
  3. Step 3: Cross multiply
    2,116x = 4,368 × 4,368
  4. Step 4: Simplify right side
    2,116x = 19,079,424
  5. Step 5: Solve for x
    x = 19,079,424/2,116
  6. Step 6: Final answer
    x = 9,016.74

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.