Finding the Fourth Proportional to 19,798,151.05, 27,325,278.62 and 12,910,675.69
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Solution
The fourth proportional to 19,798,151.05, 27,325,278.62 and 12,910,675.69 is: 17,819,230.17
Step by Step Solution
- Step 1: Write the proportion equation
19,798,151.05 : 27,325,278.62 = 12,910,675.69 : x - Step 2: Convert to fraction form
19,798,151.05/27,325,278.62 = 12,910,675.69/x - Step 3: Cross multiply
19,798,151.05x = 27,325,278.62 × 12,910,675.69 - Step 4: Simplify right side
19,798,151.05x = 352,787,810,401,710.75 - Step 5: Solve for x
x = 352,787,810,401,710.75/19,798,151.05 - Step 6: Final answer
x = 17,819,230.17
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1.5x scale
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.