Finding the Fourth Proportional to 88,742.13, 122,464.74 and 48,456.18
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Solution
The fourth proportional to 88,742.13, 122,464.74 and 48,456.18 is: 66,869.86
Step by Step Solution
- Step 1: Write the proportion equation
88,742.13 : 122,464.74 = 48,456.18 : x - Step 2: Convert to fraction form
88,742.13/122,464.74 = 48,456.18/x - Step 3: Cross multiply
88,742.13x = 122,464.74 × 48,456.18 - Step 4: Simplify right side
88,742.13x = 5,934,173,485.09 - Step 5: Solve for x
x = 5,934,173,485.09/88,742.13 - Step 6: Final answer
x = 66,869.86
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1.5x scale
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.