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---- = ---- = ---- = k
30 ... 35 .. 15
a = 30k
b = 35k
c = 15k
30k . 35k . 15k = 1008
15750k³ = 1008
k = 0,4
...... 4 ..... 2
k = ---- → ---
..... 10 .... 5
* reemplazamos "k" :
30 x 2 ......... 60
...... --...=.... ---- → 14
...... 5 ......... 5
35 x 2 ......... 70
...... --...= ... ---- → 14
...... 5 ......... 5
15 x 2...........30
.......--...=.....---- → 6
.......5...........5
Hallar:
a + b + c
12 + 14 + 6 → 32
b/35=k ⇒ b=35k
c/15=k ⇒ c=15k
30k*35k*15k=1008
15750k³=1008 ⇒∛k=∛(1008/80)
2³ * 2 * 3² * 7 2³
K³= ---------------------- = ------ sacando ∛ a ambos lados tenemos
2 * 3² * 5³ * 7 5³
k=2/5
a=30k=30* 2/5=12
b=35k=35* 2/5=14
c=15k= 15* 2/5=6
⇒a+b+c=12+14+6=32Rta,