By Saqib Iqbal Ahmed NEW YORK (Reuters) -The dollar strengthened on Friday, extending its rebound against most major currencies, as traders reviewed the near-term outlook after the Federal Reserve cut interest rates this week but signaled gradual easing in the future. The U.S. Dollar Currency Index, which tracks the greenback against six major peers, rose 0.3% to 97.662. The gauge, which fell 1% on Monday and Tuesday on expectations the Fed might flag a rapid series of rate cuts, was about flat for the w ...