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Finding the Third Proportional to 2,321 and 5,087

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Solution

The third proportional to 2,321 and 5,087 is: 11,149.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321 : 5,087 = 5,087 : x
  2. Step 2: Convert to fraction form
    2,321/5,087 = 5,087/x
  3. Step 3: Cross multiply
    2,321x = 5,087 × 5,087
  4. Step 4: Simplify right side
    2,321x = 25,877,569
  5. Step 5: Solve for x
    x = 25,877,569/2,321
  6. Step 6: Final answer
    x = 11,149.32

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.