Finding the Fourth Proportional to 5,115,107.76, 7,673,887.77 and 1,703,423.91
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Solution
The fourth proportional to 5,115,107.76, 7,673,887.77 and 1,703,423.91 is: 2,555,544.19
Step by Step Solution
- Step 1: Write the proportion equation
5,115,107.76 : 7,673,887.77 = 1,703,423.91 : x - Step 2: Convert to fraction form
5,115,107.76/7,673,887.77 = 1,703,423.91/x - Step 3: Cross multiply
5,115,107.76x = 7,673,887.77 × 1,703,423.91 - Step 4: Simplify right side
5,115,107.76x = 13,071,883,910,074.58 - Step 5: Solve for x
x = 13,071,883,910,074.58/5,115,107.76 - Step 6: Final answer
x = 2,555,544.19
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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.