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Finding the Third Proportional to 3,316 and 5,212

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Solution

The third proportional to 3,316 and 5,212 is: 8,192.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316 : 5,212 = 5,212 : x
  2. Step 2: Convert to fraction form
    3,316/5,212 = 5,212/x
  3. Step 3: Cross multiply
    3,316x = 5,212 × 5,212
  4. Step 4: Simplify right side
    3,316x = 27,164,944
  5. Step 5: Solve for x
    x = 27,164,944/3,316
  6. Step 6: Final answer
    x = 8,192.08

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.