Question 1038195
{{{ b - a = 18 - 4 }}}
{{{ b - a = 14 }}}
{{{ (4/7)*14 = 8 }}}
{{{ a + 8 = 4 + 8 }}}
{{{ a + 8 = 12 }}}
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12 is 4/7 of the way from a=4 to b=18
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check:
{{{ 12 - 4 = 8 }}}
{{{ 18 - 4 = 14 }}}
12 is 8/14 of the way from 4 to 18
{{{ 8/14 = 4/7 }}}
OK