Finding the Fourth Proportional to 15,784,631.19, 21,782,856.66 and 8,541,287.19
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Solution
The fourth proportional to 15,784,631.19, 21,782,856.66 and 8,541,287.19 is: 11,787,011.83
Step by Step Solution
- Step 1: Write the proportion equation
15,784,631.19 : 21,782,856.66 = 8,541,287.19 : x - Step 2: Convert to fraction form
15,784,631.19/21,782,856.66 = 8,541,287.19/x - Step 3: Cross multiply
15,784,631.19x = 21,782,856.66 × 8,541,287.19 - Step 4: Simplify right side
15,784,631.19x = 186,053,634,551,664.19 - Step 5: Solve for x
x = 186,053,634,551,664.19/15,784,631.19 - Step 6: Final answer
x = 11,787,011.83
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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.