Finding the Fourth Proportional to 25,628.16, 38,448.64 and 7,160
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Solution
The fourth proportional to 25,628.16, 38,448.64 and 7,160 is: 10,741.79
Step by Step Solution
- Step 1: Write the proportion equation
25,628.16 : 38,448.64 = 7,160 : x - Step 2: Convert to fraction form
25,628.16/38,448.64 = 7,160/x - Step 3: Cross multiply
25,628.16x = 38,448.64 × 7,160 - Step 4: Simplify right side
25,628.16x = 275,292,262.40 - Step 5: Solve for x
x = 275,292,262.40/25,628.16 - Step 6: Final answer
x = 10,741.79
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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.