Finding the Fourth Proportional to 48,616.80, 67,072.74 and 30,705
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Solution
The fourth proportional to 48,616.80, 67,072.74 and 30,705 is: 42,361.25
Step by Step Solution
- Step 1: Write the proportion equation
48,616.80 : 67,072.74 = 30,705 : x - Step 2: Convert to fraction form
48,616.80/67,072.74 = 30,705/x - Step 3: Cross multiply
48,616.80x = 67,072.74 × 30,705 - Step 4: Simplify right side
48,616.80x = 2,059,468,481.70 - Step 5: Solve for x
x = 2,059,468,481.70/48,616.80 - Step 6: Final answer
x = 42,361.25
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.