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Finding the Third Proportional to 2,606 and 4,213

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Solution

The third proportional to 2,606 and 4,213 is: 6,810.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,606 : 4,213 = 4,213 : x
  2. Step 2: Convert to fraction form
    2,606/4,213 = 4,213/x
  3. Step 3: Cross multiply
    2,606x = 4,213 × 4,213
  4. Step 4: Simplify right side
    2,606x = 17,749,369
  5. Step 5: Solve for x
    x = 17,749,369/2,606
  6. Step 6: Final answer
    x = 6,810.96

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.