Finding the Fourth Proportional to 19,752,910.12, 27,253,759.26 and 13,559,851
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Solution
The fourth proportional to 19,752,910.12, 27,253,759.26 and 13,559,851 is: 18,708,985.79
Step by Step Solution
- Step 1: Write the proportion equation
19,752,910.12 : 27,253,759.26 = 13,559,851 : x - Step 2: Convert to fraction form
19,752,910.12/27,253,759.26 = 13,559,851/x - Step 3: Cross multiply
19,752,910.12x = 27,253,759.26 × 13,559,851 - Step 4: Simplify right side
19,752,910.12x = 369,556,914,755,470.31 - Step 5: Solve for x
x = 369,556,914,755,470.31/19,752,910.12 - Step 6: Final answer
x = 18,708,985.79
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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.