Finding the Fourth Proportional to 75,923.49, 113,885.64 and 49,793.70
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Solution
The fourth proportional to 75,923.49, 113,885.64 and 49,793.70 is: 74,690.82
Step by Step Solution
- Step 1: Write the proportion equation
75,923.49 : 113,885.64 = 49,793.70 : x - Step 2: Convert to fraction form
75,923.49/113,885.64 = 49,793.70/x - Step 3: Cross multiply
75,923.49x = 113,885.64 × 49,793.70 - Step 4: Simplify right side
75,923.49x = 5,670,787,392.47 - Step 5: Solve for x
x = 5,670,787,392.47/75,923.49 - Step 6: Final answer
x = 74,690.82
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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.