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Finding the Third Proportional to 28,222 and 61,330

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Solution

The third proportional to 28,222 and 61,330 is: 133,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222 : 61,330 = 61,330 : x
  2. Step 2: Convert to fraction form
    28,222/61,330 = 61,330/x
  3. Step 3: Cross multiply
    28,222x = 61,330 × 61,330
  4. Step 4: Simplify right side
    28,222x = 3,761,368,900
  5. Step 5: Solve for x
    x = 3,761,368,900/28,222
  6. Step 6: Final answer
    x = 133,277.90

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.