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Finding the Third Proportional to 4,156 and 6,212

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Solution

The third proportional to 4,156 and 6,212 is: 9,285.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,156 : 6,212 = 6,212 : x
  2. Step 2: Convert to fraction form
    4,156/6,212 = 6,212/x
  3. Step 3: Cross multiply
    4,156x = 6,212 × 6,212
  4. Step 4: Simplify right side
    4,156x = 38,588,944
  5. Step 5: Solve for x
    x = 38,588,944/4,156
  6. Step 6: Final answer
    x = 9,285.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.