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Finding the Third Proportional to 2,140 and 4,676

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Solution

The third proportional to 2,140 and 4,676 is: 10,217.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140 : 4,676 = 4,676 : x
  2. Step 2: Convert to fraction form
    2,140/4,676 = 4,676/x
  3. Step 3: Cross multiply
    2,140x = 4,676 × 4,676
  4. Step 4: Simplify right side
    2,140x = 21,864,976
  5. Step 5: Solve for x
    x = 21,864,976/2,140
  6. Step 6: Final answer
    x = 10,217.28

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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.