Finding the Fourth Proportional to 10,984,755.84, 15,159,861.09 and 6,091,512.72
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Solution
The fourth proportional to 10,984,755.84, 15,159,861.09 and 6,091,512.72 is: 8,406,785.55
Step by Step Solution
- Step 1: Write the proportion equation
10,984,755.84 : 15,159,861.09 = 6,091,512.72 : x - Step 2: Convert to fraction form
10,984,755.84/15,159,861.09 = 6,091,512.72/x - Step 3: Cross multiply
10,984,755.84x = 15,159,861.09 × 6,091,512.72 - Step 4: Simplify right side
10,984,755.84x = 92,346,486,663,168.06 - Step 5: Solve for x
x = 92,346,486,663,168.06/10,984,755.84 - Step 6: Final answer
x = 8,406,785.55
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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.