Finding the Fourth Proportional to 97,728.44, 134,925.84 and 75,024.02
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Solution
The fourth proportional to 97,728.44, 134,925.84 and 75,024.02 is: 103,579.66
Step by Step Solution
- Step 1: Write the proportion equation
97,728.44 : 134,925.84 = 75,024.02 : x - Step 2: Convert to fraction form
97,728.44/134,925.84 = 75,024.02/x - Step 3: Cross multiply
97,728.44x = 134,925.84 × 75,024.02 - Step 4: Simplify right side
97,728.44x = 10,122,678,918.68 - Step 5: Solve for x
x = 10,122,678,918.68/97,728.44 - Step 6: Final answer
x = 103,579.66
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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.