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Finding the Third Proportional to 2,407 and 5,197

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Solution

The third proportional to 2,407 and 5,197 is: 11,220.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,407 : 5,197 = 5,197 : x
  2. Step 2: Convert to fraction form
    2,407/5,197 = 5,197/x
  3. Step 3: Cross multiply
    2,407x = 5,197 × 5,197
  4. Step 4: Simplify right side
    2,407x = 27,008,809
  5. Step 5: Solve for x
    x = 27,008,809/2,407
  6. Step 6: Final answer
    x = 11,220.94

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.