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Finding the Third Proportional to 3,430 and 7,393

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Solution

The third proportional to 3,430 and 7,393 is: 15,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430 : 7,393 = 7,393 : x
  2. Step 2: Convert to fraction form
    3,430/7,393 = 7,393/x
  3. Step 3: Cross multiply
    3,430x = 7,393 × 7,393
  4. Step 4: Simplify right side
    3,430x = 54,656,449
  5. Step 5: Solve for x
    x = 54,656,449/3,430
  6. Step 6: Final answer
    x = 15,934.82

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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.