Finding the Fourth Proportional to 5,627,371.56, 7,765,761.90 and 3,049,122.12
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Solution
The fourth proportional to 5,627,371.56, 7,765,761.90 and 3,049,122.12 is: 4,207,782.65
Step by Step Solution
- Step 1: Write the proportion equation
5,627,371.56 : 7,765,761.90 = 3,049,122.12 : x - Step 2: Convert to fraction form
5,627,371.56/7,765,761.90 = 3,049,122.12/x - Step 3: Cross multiply
5,627,371.56x = 7,765,761.90 × 3,049,122.12 - Step 4: Simplify right side
5,627,371.56x = 23,678,756,387,943.23 - Step 5: Solve for x
x = 23,678,756,387,943.23/5,627,371.56 - Step 6: Final answer
x = 4,207,782.65
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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.