document.write( "Question 1180291: The sum of a geometric series with seven terms is 56,133, and the common ratio is r = 3. Find the first term. \n" ); document.write( "

Algebra.Com's Answer #809931 by ikleyn(52790) $\"\"$ $\"About$

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\n" ); document.write( "The sum of a geometric series with seven terms is 56,133, and the common ratio is r = 3.
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document.write( "The formula for the sum of the GP is\r\n" );
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document.write( "     = ,\r\n" );
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document.write( "where \"a\" is the first term, r is the common ratio.\r\n" );
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document.write( "For this case, we have\r\n" );
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document.write( "    56133 =  = a*1093.\r\n" );
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document.write( "It gives the ANSWER :  a =  = 51.35682...\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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\n" ); document.write( "\n" ); document.write( "If you do not like this ugly number, look and search for your error in the post,\r
\n" ); document.write( "\n" ); document.write( "because my calculations are correct.\r
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