Finding the Fourth Proportional to 84,842.92, 117,083.94 and 47,117.80
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Solution
The fourth proportional to 84,842.92, 117,083.94 and 47,117.80 is: 65,022.96
Step by Step Solution
- Step 1: Write the proportion equation
84,842.92 : 117,083.94 = 47,117.80 : x - Step 2: Convert to fraction form
84,842.92/117,083.94 = 47,117.80/x - Step 3: Cross multiply
84,842.92x = 117,083.94 × 47,117.80 - Step 4: Simplify right side
84,842.92x = 5,516,737,668.13 - Step 5: Solve for x
x = 5,516,737,668.13/84,842.92 - Step 6: Final answer
x = 65,022.96
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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.