Finding the Third Proportional to 19,835 and 30,779
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Solution
The third proportional to 19,835 and 30,779 is: 47,761.37
Step by Step Solution
- Step 1: Write the proportion equation
19,835 : 30,779 = 30,779 : x - Step 2: Convert to fraction form
19,835/30,779 = 30,779/x - Step 3: Cross multiply
19,835x = 30,779 × 30,779 - Step 4: Simplify right side
19,835x = 947,346,841 - Step 5: Solve for x
x = 947,346,841/19,835 - Step 6: Final answer
x = 47,761.37
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Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.