Finding the Fourth Proportional to 27,732,246.36, 38,270,369.34 and 15,509,151.96
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Solution
The fourth proportional to 27,732,246.36, 38,270,369.34 and 15,509,151.96 is: 21,402,556.65
Step by Step Solution
- Step 1: Write the proportion equation
27,732,246.36 : 38,270,369.34 = 15,509,151.96 : x - Step 2: Convert to fraction form
27,732,246.36/38,270,369.34 = 15,509,151.96/x - Step 3: Cross multiply
27,732,246.36x = 38,270,369.34 × 15,509,151.96 - Step 4: Simplify right side
27,732,246.36x = 593,540,973,659,385 - Step 5: Solve for x
x = 593,540,973,659,385/27,732,246.36 - Step 6: Final answer
x = 21,402,556.65
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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.