Question 1020392
{{{ 275 / 1575 = 950 / R }}}
Divide top and bottom of left side by {{{ 25 }}}
{{{ 11/63 = 950/R }}}
Multiply both sides by {{{ 63R }}}
{{{ 11R = 950*63 }}}
{{{ 11R = 59850 }}}
{{{ R = 5440.91 }}} ohms