Solve this unit conversion problem: "A wobegong is moving at 11 ripples per sand dune, so if every sand dune is three stick-widths and every ripple is eight tail-flicks, how many tail-flicks per stick-width was the wobegong moving?"
Implement a function that converts a rate from ripples per sand dune into tail-flicks per stick-width. Return the result as a floating-point number.
Input: Three positive numbers: ripples_per_dune, stick_widths_per_dune, and tail_flicks_per_ripple.
Output: tail_flicks_per_stick_width.
def convert_rate(ripples_per_dune, stick_widths_per_dune, tail_flicks_per_ripple):