Finding the Fourth Proportional to 19,520,034.15, 29,105,537.11 and 18,983,736.75
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Solution
The fourth proportional to 19,520,034.15, 29,105,537.11 and 18,983,736.75 is: 28,305,885.65
Step by Step Solution
- Step 1: Write the proportion equation
19,520,034.15 : 29,105,537.11 = 18,983,736.75 : x - Step 2: Convert to fraction form
19,520,034.15/29,105,537.11 = 18,983,736.75/x - Step 3: Cross multiply
19,520,034.15x = 29,105,537.11 × 18,983,736.75 - Step 4: Simplify right side
19,520,034.15x = 552,531,854,463,595.75 - Step 5: Solve for x
x = 552,531,854,463,595.75/19,520,034.15 - Step 6: Final answer
x = 28,305,885.65
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.