Finding the Fourth Proportional to 73,792.11, 110,688.21 and 31,644.99
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Solution
The fourth proportional to 73,792.11, 110,688.21 and 31,644.99 is: 47,467.50
Step by Step Solution
- Step 1: Write the proportion equation
73,792.11 : 110,688.21 = 31,644.99 : x - Step 2: Convert to fraction form
73,792.11/110,688.21 = 31,644.99/x - Step 3: Cross multiply
73,792.11x = 110,688.21 × 31,644.99 - Step 4: Simplify right side
73,792.11x = 3,502,727,298.57 - Step 5: Solve for x
x = 3,502,727,298.57/73,792.11 - Step 6: Final answer
x = 47,467.50
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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.