Finding the Fourth Proportional to 14,021,528.75, 19,352,938.16 and 8,222,178.83
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Solution
The fourth proportional to 14,021,528.75, 19,352,938.16 and 8,222,178.83 is: 11,348,499.95
Step by Step Solution
- Step 1: Write the proportion equation
14,021,528.75 : 19,352,938.16 = 8,222,178.83 : x - Step 2: Convert to fraction form
14,021,528.75/19,352,938.16 = 8,222,178.83/x - Step 3: Cross multiply
14,021,528.75x = 19,352,938.16 × 8,222,178.83 - Step 4: Simplify right side
14,021,528.75x = 159,123,318,299,575.59 - Step 5: Solve for x
x = 159,123,318,299,575.59/14,021,528.75 - Step 6: Final answer
x = 11,348,499.95
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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.