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Finding the Third Proportional to 4,106 and 8,980

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Solution

The third proportional to 4,106 and 8,980 is: 19,639.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,106 : 8,980 = 8,980 : x
  2. Step 2: Convert to fraction form
    4,106/8,980 = 8,980/x
  3. Step 3: Cross multiply
    4,106x = 8,980 × 8,980
  4. Step 4: Simplify right side
    4,106x = 80,640,400
  5. Step 5: Solve for x
    x = 80,640,400/4,106
  6. Step 6: Final answer
    x = 19,639.65

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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.