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Finding the Third Proportional to 15,212 and 22,716

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Solution

The third proportional to 15,212 and 22,716 is: 33,921.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,212 : 22,716 = 22,716 : x
  2. Step 2: Convert to fraction form
    15,212/22,716 = 22,716/x
  3. Step 3: Cross multiply
    15,212x = 22,716 × 22,716
  4. Step 4: Simplify right side
    15,212x = 516,016,656
  5. Step 5: Solve for x
    x = 516,016,656/15,212
  6. Step 6: Final answer
    x = 33,921.68

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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.