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Finding the Third Proportional to 3,031.25 and 6,429.25

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Solution

The third proportional to 3,031.25 and 6,429.25 is: 13,636.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.25 : 6,429.25 = 6,429.25 : x
  2. Step 2: Convert to fraction form
    3,031.25/6,429.25 = 6,429.25/x
  3. Step 3: Cross multiply
    3,031.25x = 6,429.25 × 6,429.25
  4. Step 4: Simplify right side
    3,031.25x = 41,335,255.56
  5. Step 5: Solve for x
    x = 41,335,255.56/3,031.25
  6. Step 6: Final answer
    x = 13,636.37

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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.