Finding the Fourth Proportional to 11,436,560.16, 15,782,728.68 and 6,209,790.54
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Solution
The fourth proportional to 11,436,560.16, 15,782,728.68 and 6,209,790.54 is: 8,569,660.62
Step by Step Solution
- Step 1: Write the proportion equation
11,436,560.16 : 15,782,728.68 = 6,209,790.54 : x - Step 2: Convert to fraction form
11,436,560.16/15,782,728.68 = 6,209,790.54/x - Step 3: Cross multiply
11,436,560.16x = 15,782,728.68 × 6,209,790.54 - Step 4: Simplify right side
11,436,560.16x = 98,007,439,252,450.69 - Step 5: Solve for x
x = 98,007,439,252,450.69/11,436,560.16 - Step 6: Final answer
x = 8,569,660.62
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1.5x scale
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.