Finding the Fourth Proportional to 7,175,641.30, 9,903,520.92 and 4,276,713.68
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Solution
The fourth proportional to 7,175,641.30, 9,903,520.92 and 4,276,713.68 is: 5,902,541.90
Step by Step Solution
- Step 1: Write the proportion equation
7,175,641.30 : 9,903,520.92 = 4,276,713.68 : x - Step 2: Convert to fraction form
7,175,641.30/9,903,520.92 = 4,276,713.68/x - Step 3: Cross multiply
7,175,641.30x = 9,903,520.92 × 4,276,713.68 - Step 4: Simplify right side
7,175,641.30x = 42,354,523,398,730.18 - Step 5: Solve for x
x = 42,354,523,398,730.18/7,175,641.30 - Step 6: Final answer
x = 5,902,541.90
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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.