Finding the Fourth Proportional to 19,155,759.12, 28,708,687.44 and 7,782,912
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Solution
The fourth proportional to 19,155,759.12, 28,708,687.44 and 7,782,912 is: 11,664,230.41
Step by Step Solution
- Step 1: Write the proportion equation
19,155,759.12 : 28,708,687.44 = 7,782,912 : x - Step 2: Convert to fraction form
19,155,759.12/28,708,687.44 = 7,782,912/x - Step 3: Cross multiply
19,155,759.12x = 28,708,687.44 × 7,782,912 - Step 4: Simplify right side
19,155,759.12x = 223,437,187,981,025.28 - Step 5: Solve for x
x = 223,437,187,981,025.28/19,155,759.12 - Step 6: Final answer
x = 11,664,230.41
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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.