Finding the Fourth Proportional to 69,431.52, 104,178.72 and 27,300
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Solution
The fourth proportional to 69,431.52, 104,178.72 and 27,300 is: 40,962.36
Step by Step Solution
- Step 1: Write the proportion equation
69,431.52 : 104,178.72 = 27,300 : x - Step 2: Convert to fraction form
69,431.52/104,178.72 = 27,300/x - Step 3: Cross multiply
69,431.52x = 104,178.72 × 27,300 - Step 4: Simplify right side
69,431.52x = 2,844,079,056 - Step 5: Solve for x
x = 2,844,079,056/69,431.52 - Step 6: Final answer
x = 40,962.36
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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.