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Finding the Third Proportional to 3,155 and 6,692

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Solution

The third proportional to 3,155 and 6,692 is: 14,194.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155 : 6,692 = 6,692 : x
  2. Step 2: Convert to fraction form
    3,155/6,692 = 6,692/x
  3. Step 3: Cross multiply
    3,155x = 6,692 × 6,692
  4. Step 4: Simplify right side
    3,155x = 44,782,864
  5. Step 5: Solve for x
    x = 44,782,864/3,155
  6. Step 6: Final answer
    x = 14,194.25

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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.