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Finding the Third Proportional to 22,378 and 45,728

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Solution

The third proportional to 22,378 and 45,728 is: 93,442.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,378 : 45,728 = 45,728 : x
  2. Step 2: Convert to fraction form
    22,378/45,728 = 45,728/x
  3. Step 3: Cross multiply
    22,378x = 45,728 × 45,728
  4. Step 4: Simplify right side
    22,378x = 2,091,049,984
  5. Step 5: Solve for x
    x = 2,091,049,984/22,378
  6. Step 6: Final answer
    x = 93,442.22

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.