Finding the Fourth Proportional to 86,157.36, 129,236.07 and 26,997.66
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Solution
The fourth proportional to 86,157.36, 129,236.07 and 26,997.66 is: 40,496.50
Step by Step Solution
- Step 1: Write the proportion equation
86,157.36 : 129,236.07 = 26,997.66 : x - Step 2: Convert to fraction form
86,157.36/129,236.07 = 26,997.66/x - Step 3: Cross multiply
86,157.36x = 129,236.07 × 26,997.66 - Step 4: Simplify right side
86,157.36x = 3,489,071,477.60 - Step 5: Solve for x
x = 3,489,071,477.60/86,157.36 - Step 6: Final answer
x = 40,496.50
Related Problems
Find fourth proportional to 43,078.68, 64,618.04 and 13,498.83
Half scale
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Double scale
Find fourth proportional to 86,158.36, 129,237.57 and 26,998.66
Similar ratio
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1.5x scale
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.