Finding the Fourth Proportional to 18,722.08, 28,086 and 6,237.82
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Solution
The fourth proportional to 18,722.08, 28,086 and 6,237.82 is: 9,357.69
Step by Step Solution
- Step 1: Write the proportion equation
18,722.08 : 28,086 = 6,237.82 : x - Step 2: Convert to fraction form
18,722.08/28,086 = 6,237.82/x - Step 3: Cross multiply
18,722.08x = 28,086 × 6,237.82 - Step 4: Simplify right side
18,722.08x = 175,195,412.52 - Step 5: Solve for x
x = 175,195,412.52/18,722.08 - Step 6: Final answer
x = 9,357.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.