In a week, Latia earns 30*10 = $<<30*10=300>>300.
In a month, she earns 300*4 = $<<300*4=1200>>1200.
If the TV was worth $1700, the total amount she has to work for to buy the TV is 1700-1200 = $<<1700-1200=500>>500.
Since she earns $10 per hour, she'll have to work for $500/$10 = <<500/10=50>>50 more hours to buy the TV.
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