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Finding the Third Proportional to 6,216 and 11,216

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Solution

The third proportional to 6,216 and 11,216 is: 20,237.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,216 : 11,216 = 11,216 : x
  2. Step 2: Convert to fraction form
    6,216/11,216 = 11,216/x
  3. Step 3: Cross multiply
    6,216x = 11,216 × 11,216
  4. Step 4: Simplify right side
    6,216x = 125,798,656
  5. Step 5: Solve for x
    x = 125,798,656/6,216
  6. Step 6: Final answer
    x = 20,237.88

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Why These Related Problems?

These problems maintain the same ratio (1.80) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.