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9. Ursula Burns
Chairman and CEO
Xerox (XRX)
2009 rank: 9
Age: 52

The onetime Xerox intern (and current American Express board member) added the role of chairman in May, just three months after snagging Affiliated Computer Services. The deal makes Xerox the world's largest business process and document management firm, with $22 billion in revenue.

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Last updated September 30 2010: 2:47 PM ET
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