Finding the Third Proportional to 57,990 and 84,908
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Solution
The third proportional to 57,990 and 84,908 is: 124,320.89
Step by Step Solution
- Step 1: Write the proportion equation
57,990 : 84,908 = 84,908 : x - Step 2: Convert to fraction form
57,990/84,908 = 84,908/x - Step 3: Cross multiply
57,990x = 84,908 × 84,908 - Step 4: Simplify right side
57,990x = 7,209,368,464 - Step 5: Solve for x
x = 7,209,368,464/57,990 - Step 6: Final answer
x = 124,320.89
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.