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Finding the Third Proportional to 3,180 and 7,426

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Solution

The third proportional to 3,180 and 7,426 is: 17,341.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180 : 7,426 = 7,426 : x
  2. Step 2: Convert to fraction form
    3,180/7,426 = 7,426/x
  3. Step 3: Cross multiply
    3,180x = 7,426 × 7,426
  4. Step 4: Simplify right side
    3,180x = 55,145,476
  5. Step 5: Solve for x
    x = 55,145,476/3,180
  6. Step 6: Final answer
    x = 17,341.34

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.