Finding the Fourth Proportional to 28,580.70, 39,442.77 and 17,250
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Solution
The fourth proportional to 28,580.70, 39,442.77 and 17,250 is: 23,805.85
Step by Step Solution
- Step 1: Write the proportion equation
28,580.70 : 39,442.77 = 17,250 : x - Step 2: Convert to fraction form
28,580.70/39,442.77 = 17,250/x - Step 3: Cross multiply
28,580.70x = 39,442.77 × 17,250 - Step 4: Simplify right side
28,580.70x = 680,387,782.50 - Step 5: Solve for x
x = 680,387,782.50/28,580.70 - Step 6: Final answer
x = 23,805.85
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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.