Finding the Fourth Proportional to 18,911,648, 28,367,472 and 4,728,224
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Solution
The fourth proportional to 18,911,648, 28,367,472 and 4,728,224 is: 7,092,336
Step by Step Solution
- Step 1: Write the proportion equation
18,911,648 : 28,367,472 = 4,728,224 : x - Step 2: Convert to fraction form
18,911,648/28,367,472 = 4,728,224/x - Step 3: Cross multiply
18,911,648x = 28,367,472 × 4,728,224 - Step 4: Simplify right side
18,911,648x = 134,127,761,929,728 - Step 5: Solve for x
x = 134,127,761,929,728/18,911,648 - Step 6: Final answer
x = 7,092,336
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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.