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Finding the Third Proportional to 2,604 and 3,687

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Solution

The third proportional to 2,604 and 3,687 is: 5,220.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,604 : 3,687 = 3,687 : x
  2. Step 2: Convert to fraction form
    2,604/3,687 = 3,687/x
  3. Step 3: Cross multiply
    2,604x = 3,687 × 3,687
  4. Step 4: Simplify right side
    2,604x = 13,593,969
  5. Step 5: Solve for x
    x = 13,593,969/2,604
  6. Step 6: Final answer
    x = 5,220.42

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.