Finding the Fourth Proportional to 20,059,501.62, 27,682,905.96 and 11,239,028.98
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Solution
The fourth proportional to 20,059,501.62, 27,682,905.96 and 11,239,028.98 is: 15,510,304.70
Step by Step Solution
- Step 1: Write the proportion equation
20,059,501.62 : 27,682,905.96 = 11,239,028.98 : x - Step 2: Convert to fraction form
20,059,501.62/27,682,905.96 = 11,239,028.98/x - Step 3: Cross multiply
20,059,501.62x = 27,682,905.96 × 11,239,028.98 - Step 4: Simplify right side
20,059,501.62x = 311,128,982,335,054.75 - Step 5: Solve for x
x = 311,128,982,335,054.75/20,059,501.62 - Step 6: Final answer
x = 15,510,304.70
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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.