[
  "Let pears = 1 unit. Then apples = 1 unit + 4.",
  "Total: 1 unit + (1 unit + 4) = 16. So 2 units + 4 = 16.",
  "2 units = 12, 1 unit = 6. Pears = 6, Apples = 10. Ratio = 10:6 = 5:3."
]