Finding the Fourth Proportional to 1,986,116.36, 2,743,607.50 and 1,912,378.82
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Solution
The fourth proportional to 1,986,116.36, 2,743,607.50 and 1,912,378.82 is: 2,641,746.97
Step by Step Solution
- Step 1: Write the proportion equation
1,986,116.36 : 2,743,607.50 = 1,912,378.82 : x - Step 2: Convert to fraction form
1,986,116.36/2,743,607.50 = 1,912,378.82/x - Step 3: Cross multiply
1,986,116.36x = 2,743,607.50 × 1,912,378.82 - Step 4: Simplify right side
1,986,116.36x = 5,246,816,854,894.17 - Step 5: Solve for x
x = 5,246,816,854,894.17/1,986,116.36 - Step 6: Final answer
x = 2,641,746.97
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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.