Q. Type the missing number to complete the proportion.12 plates in 3 stacks = ____ plates in 1 stack
Identify total plates and stacks: Identify the total number of plates and the number of stacks.Total plates: 12Number of stacks: 3
Calculate plates per stack: Calculate the number of plates per stack by dividing the total number of plates by the number of stacks.Calculation: 12 plates ÷3 stacks = 4 plates per stack