The fourth proportional to 10, 12, 15 is:
Let the fourth proportional to 10, 12, 15 = $$d$$
$$=$$> Â $$\frac{10}{12}=\frac{15}{d}$$
$$=$$> Â $$10d=180$$
$$=$$> Â $$d=18$$
Hence, the correct answer is Option B
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