Finding the Fourth Proportional to 19,147.44, 28,709.64 and 7,302
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Solution
The fourth proportional to 19,147.44, 28,709.64 and 7,302 is: 10,948.61
Step by Step Solution
- Step 1: Write the proportion equation
19,147.44 : 28,709.64 = 7,302 : x - Step 2: Convert to fraction form
19,147.44/28,709.64 = 7,302/x - Step 3: Cross multiply
19,147.44x = 28,709.64 × 7,302 - Step 4: Simplify right side
19,147.44x = 209,637,791.28 - Step 5: Solve for x
x = 209,637,791.28/19,147.44 - Step 6: Final answer
x = 10,948.61
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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.