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Finding the Third Proportional to 15,220 and 22,259

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Solution

The third proportional to 15,220 and 22,259 is: 32,553.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,220 : 22,259 = 22,259 : x
  2. Step 2: Convert to fraction form
    15,220/22,259 = 22,259/x
  3. Step 3: Cross multiply
    15,220x = 22,259 × 22,259
  4. Step 4: Simplify right side
    15,220x = 495,463,081
  5. Step 5: Solve for x
    x = 495,463,081/15,220
  6. Step 6: Final answer
    x = 32,553.42

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.