Finding the Fourth Proportional to 7,362,970.98, 11,040,760.65 and 4,289,956.50
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Solution
The fourth proportional to 7,362,970.98, 11,040,760.65 and 4,289,956.50 is: 6,432,781.42
Step by Step Solution
- Step 1: Write the proportion equation
7,362,970.98 : 11,040,760.65 = 4,289,956.50 : x - Step 2: Convert to fraction form
7,362,970.98/11,040,760.65 = 4,289,956.50/x - Step 3: Cross multiply
7,362,970.98x = 11,040,760.65 × 4,289,956.50 - Step 4: Simplify right side
7,362,970.98x = 47,364,382,915,411.73 - Step 5: Solve for x
x = 47,364,382,915,411.73/7,362,970.98 - Step 6: Final answer
x = 6,432,781.42
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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.