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Finding the Third Proportional to 1,708 and 3,619

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Solution

The third proportional to 1,708 and 3,619 is: 7,668.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708 : 3,619 = 3,619 : x
  2. Step 2: Convert to fraction form
    1,708/3,619 = 3,619/x
  3. Step 3: Cross multiply
    1,708x = 3,619 × 3,619
  4. Step 4: Simplify right side
    1,708x = 13,097,161
  5. Step 5: Solve for x
    x = 13,097,161/1,708
  6. Step 6: Final answer
    x = 7,668.13

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.