Finding the Fourth Proportional to 5,198,982.48, 7,176,402.36 and 3,572,774.64
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Solution
The fourth proportional to 5,198,982.48, 7,176,402.36 and 3,572,774.64 is: 4,931,670.47
Step by Step Solution
- Step 1: Write the proportion equation
5,198,982.48 : 7,176,402.36 = 3,572,774.64 : x - Step 2: Convert to fraction form
5,198,982.48/7,176,402.36 = 3,572,774.64/x - Step 3: Cross multiply
5,198,982.48x = 7,176,402.36 × 3,572,774.64 - Step 4: Simplify right side
5,198,982.48x = 25,639,668,358,244.15 - Step 5: Solve for x
x = 25,639,668,358,244.15/5,198,982.48 - Step 6: Final answer
x = 4,931,670.47
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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.