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Finding the Third Proportional to 2,106 and 4,293

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Solution

The third proportional to 2,106 and 4,293 is: 8,751.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106 : 4,293 = 4,293 : x
  2. Step 2: Convert to fraction form
    2,106/4,293 = 4,293/x
  3. Step 3: Cross multiply
    2,106x = 4,293 × 4,293
  4. Step 4: Simplify right side
    2,106x = 18,429,849
  5. Step 5: Solve for x
    x = 18,429,849/2,106
  6. Step 6: Final answer
    x = 8,751.12

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.