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Finding the Third Proportional to 3,200 and 6,712

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Solution

The third proportional to 3,200 and 6,712 is: 14,078.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,200 : 6,712 = 6,712 : x
  2. Step 2: Convert to fraction form
    3,200/6,712 = 6,712/x
  3. Step 3: Cross multiply
    3,200x = 6,712 × 6,712
  4. Step 4: Simplify right side
    3,200x = 45,050,944
  5. Step 5: Solve for x
    x = 45,050,944/3,200
  6. Step 6: Final answer
    x = 14,078.42

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.