Finding the Fourth Proportional to 19,183,563.20, 28,750,850.40 and 7,811,163.20
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Solution
The fourth proportional to 19,183,563.20, 28,750,850.40 and 7,811,163.20 is: 11,706,771.17
Step by Step Solution
- Step 1: Write the proportion equation
19,183,563.20 : 28,750,850.40 = 7,811,163.20 : x - Step 2: Convert to fraction form
19,183,563.20/28,750,850.40 = 7,811,163.20/x - Step 3: Cross multiply
19,183,563.20x = 28,750,850.40 × 7,811,163.20 - Step 4: Simplify right side
19,183,563.20x = 224,577,584,613,185.28 - Step 5: Solve for x
x = 224,577,584,613,185.28/19,183,563.20 - Step 6: Final answer
x = 11,706,771.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.