Finding the Fourth Proportional to 3,901,587.55, 5,384,105.07 and 2,135,477.09
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Solution
The fourth proportional to 3,901,587.55, 5,384,105.07 and 2,135,477.09 is: 2,946,911.45
Step by Step Solution
- Step 1: Write the proportion equation
3,901,587.55 : 5,384,105.07 = 2,135,477.09 : x - Step 2: Convert to fraction form
3,901,587.55/5,384,105.07 = 2,135,477.09/x - Step 3: Cross multiply
3,901,587.55x = 5,384,105.07 × 2,135,477.09 - Step 4: Simplify right side
3,901,587.55x = 11,497,633,027,137.85 - Step 5: Solve for x
x = 11,497,633,027,137.85/3,901,587.55 - Step 6: Final answer
x = 2,946,911.45
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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.