Finding the Fourth Proportional to 92,923.52, 128,163.11 and 62,660.91
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Solution
The fourth proportional to 92,923.52, 128,163.11 and 62,660.91 is: 86,423.95
Step by Step Solution
- Step 1: Write the proportion equation
92,923.52 : 128,163.11 = 62,660.91 : x - Step 2: Convert to fraction form
92,923.52/128,163.11 = 62,660.91/x - Step 3: Cross multiply
92,923.52x = 128,163.11 × 62,660.91 - Step 4: Simplify right side
92,923.52x = 8,030,816,787.73 - Step 5: Solve for x
x = 8,030,816,787.73/92,923.52 - Step 6: Final answer
x = 86,423.95
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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.