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Finding the Third Proportional to 2,788 and 4,326

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Solution

The third proportional to 2,788 and 4,326 is: 6,712.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788 : 4,326 = 4,326 : x
  2. Step 2: Convert to fraction form
    2,788/4,326 = 4,326/x
  3. Step 3: Cross multiply
    2,788x = 4,326 × 4,326
  4. Step 4: Simplify right side
    2,788x = 18,714,276
  5. Step 5: Solve for x
    x = 18,714,276/2,788
  6. Step 6: Final answer
    x = 6,712.44

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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.