Finding the Fourth Proportional to 7,365,768.18, 10,161,239.52 and 5,722,932.66
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Solution
The fourth proportional to 7,365,768.18, 10,161,239.52 and 5,722,932.66 is: 7,894,911.72
Step by Step Solution
- Step 1: Write the proportion equation
7,365,768.18 : 10,161,239.52 = 5,722,932.66 : x - Step 2: Convert to fraction form
7,365,768.18/10,161,239.52 = 5,722,932.66/x - Step 3: Cross multiply
7,365,768.18x = 10,161,239.52 × 5,722,932.66 - Step 4: Simplify right side
7,365,768.18x = 58,152,089,515,090.72 - Step 5: Solve for x
x = 58,152,089,515,090.72/7,365,768.18 - Step 6: Final answer
x = 7,894,911.72
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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.