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Finding the Third Proportional to 7,398 and 17,118

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Solution

The third proportional to 7,398 and 17,118 is: 39,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,398 : 17,118 = 17,118 : x
  2. Step 2: Convert to fraction form
    7,398/17,118 = 17,118/x
  3. Step 3: Cross multiply
    7,398x = 17,118 × 17,118
  4. Step 4: Simplify right side
    7,398x = 293,025,924
  5. Step 5: Solve for x
    x = 293,025,924/7,398
  6. Step 6: Final answer
    x = 39,608.80

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.