Finding the Fourth Proportional to 75,658.05, 113,484.65 and 31,271.67
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Solution
The fourth proportional to 75,658.05, 113,484.65 and 31,271.67 is: 46,906.50
Step by Step Solution
- Step 1: Write the proportion equation
75,658.05 : 113,484.65 = 31,271.67 : x - Step 2: Convert to fraction form
75,658.05/113,484.65 = 31,271.67/x - Step 3: Cross multiply
75,658.05x = 113,484.65 × 31,271.67 - Step 4: Simplify right side
75,658.05x = 3,548,854,368.51 - Step 5: Solve for x
x = 3,548,854,368.51/75,658.05 - Step 6: Final answer
x = 46,906.50
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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.