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Finding the Third Proportional to 3,239.63 and 6,709.88

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Solution

The third proportional to 3,239.63 and 6,709.88 is: 13,897.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.63 : 6,709.88 = 6,709.88 : x
  2. Step 2: Convert to fraction form
    3,239.63/6,709.88 = 6,709.88/x
  3. Step 3: Cross multiply
    3,239.63x = 6,709.88 × 6,709.88
  4. Step 4: Simplify right side
    3,239.63x = 45,022,422.52
  5. Step 5: Solve for x
    x = 45,022,422.52/3,239.63
  6. Step 6: Final answer
    x = 13,897.42

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.