Finding the Fourth Proportional to 61,291,663.80, 84,583,073.84 and 33,790,576.20
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Solution
The fourth proportional to 61,291,663.80, 84,583,073.84 and 33,790,576.20 is: 46,631,313.70
Step by Step Solution
- Step 1: Write the proportion equation
61,291,663.80 : 84,583,073.84 = 33,790,576.20 : x - Step 2: Convert to fraction form
61,291,663.80/84,583,073.84 = 33,790,576.20/x - Step 3: Cross multiply
61,291,663.80x = 84,583,073.84 × 33,790,576.20 - Step 4: Simplify right side
61,291,663.80x = 2,858,110,801,820,747 - Step 5: Solve for x
x = 2,858,110,801,820,747/61,291,663.80 - Step 6: Final answer
x = 46,631,313.70
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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.