Finding the Fourth Proportional to 28,338,515.03, 39,119,217.19 and 19,051,471.49
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Solution
The fourth proportional to 28,338,515.03, 39,119,217.19 and 19,051,471.49 is: 26,299,142.70
Step by Step Solution
- Step 1: Write the proportion equation
28,338,515.03 : 39,119,217.19 = 19,051,471.49 : x - Step 2: Convert to fraction form
28,338,515.03/39,119,217.19 = 19,051,471.49/x - Step 3: Cross multiply
28,338,515.03x = 39,119,217.19 × 19,051,471.49 - Step 4: Simplify right side
28,338,515.03x = 745,278,650,763,178.12 - Step 5: Solve for x
x = 745,278,650,763,178.12/28,338,515.03 - Step 6: Final answer
x = 26,299,142.70
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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.