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Finding the Third Proportional to 1,684 and 3,592

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Solution

The third proportional to 1,684 and 3,592 is: 7,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684 : 3,592 = 3,592 : x
  2. Step 2: Convert to fraction form
    1,684/3,592 = 3,592/x
  3. Step 3: Cross multiply
    1,684x = 3,592 × 3,592
  4. Step 4: Simplify right side
    1,684x = 12,902,464
  5. Step 5: Solve for x
    x = 12,902,464/1,684
  6. Step 6: Final answer
    x = 7,661.80

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.