Finding the Fourth Proportional to 19,519,912.70, 29,105,355.84 and 18,983,615.30
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Solution
The fourth proportional to 19,519,912.70, 29,105,355.84 and 18,983,615.30 is: 28,305,704.38
Step by Step Solution
- Step 1: Write the proportion equation
19,519,912.70 : 29,105,355.84 = 18,983,615.30 : x - Step 2: Convert to fraction form
19,519,912.70/29,105,355.84 = 18,983,615.30/x - Step 3: Cross multiply
19,519,912.70x = 29,105,355.84 × 18,983,615.30 - Step 4: Simplify right side
19,519,912.70x = 552,524,878,290,641.62 - Step 5: Solve for x
x = 552,524,878,290,641.62/19,519,912.70 - Step 6: Final answer
x = 28,305,704.38
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.