Finding the Fourth Proportional to 5,259,647.70, 7,889,471.55 and 2,425,295.70
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Solution
The fourth proportional to 5,259,647.70, 7,889,471.55 and 2,425,295.70 is: 3,637,943.55
Step by Step Solution
- Step 1: Write the proportion equation
5,259,647.70 : 7,889,471.55 = 2,425,295.70 : x - Step 2: Convert to fraction form
5,259,647.70/7,889,471.55 = 2,425,295.70/x - Step 3: Cross multiply
5,259,647.70x = 7,889,471.55 × 2,425,295.70 - Step 4: Simplify right side
5,259,647.70x = 19,134,301,425,487.34 - Step 5: Solve for x
x = 19,134,301,425,487.34/5,259,647.70 - Step 6: Final answer
x = 3,637,943.55
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Double scale
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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.