Finding the Fourth Proportional to 7,492,744.80, 11,239,117.20 and 5,603,176.80
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Solution
The fourth proportional to 7,492,744.80, 11,239,117.20 and 5,603,176.80 is: 8,404,765.20
Step by Step Solution
- Step 1: Write the proportion equation
7,492,744.80 : 11,239,117.20 = 5,603,176.80 : x - Step 2: Convert to fraction form
7,492,744.80/11,239,117.20 = 5,603,176.80/x - Step 3: Cross multiply
7,492,744.80x = 11,239,117.20 × 5,603,176.80 - Step 4: Simplify right side
7,492,744.80x = 62,974,760,747,520.95 - Step 5: Solve for x
x = 62,974,760,747,520.95/7,492,744.80 - Step 6: Final answer
x = 8,404,765.20
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1.5x scale
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.