Finding the Fourth Proportional to 19,010,917.80, 28,516,376.70 and 15,861,637.80
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Solution
The fourth proportional to 19,010,917.80, 28,516,376.70 and 15,861,637.80 is: 23,792,456.70
Step by Step Solution
- Step 1: Write the proportion equation
19,010,917.80 : 28,516,376.70 = 15,861,637.80 : x - Step 2: Convert to fraction form
19,010,917.80/28,516,376.70 = 15,861,637.80/x - Step 3: Cross multiply
19,010,917.80x = 28,516,376.70 × 15,861,637.80 - Step 4: Simplify right side
19,010,917.80x = 452,316,438,583,759.25 - Step 5: Solve for x
x = 452,316,438,583,759.25/19,010,917.80 - Step 6: Final answer
x = 23,792,456.70
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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.