Finding the Fourth Proportional to 19,683,462.70, 29,525,194.05 and 19,152,021.70
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Solution
The fourth proportional to 19,683,462.70, 29,525,194.05 and 19,152,021.70 is: 28,728,032.55
Step by Step Solution
- Step 1: Write the proportion equation
19,683,462.70 : 29,525,194.05 = 19,152,021.70 : x - Step 2: Convert to fraction form
19,683,462.70/29,525,194.05 = 19,152,021.70/x - Step 3: Cross multiply
19,683,462.70x = 29,525,194.05 × 19,152,021.70 - Step 4: Simplify right side
19,683,462.70x = 565,467,157,142,310.88 - Step 5: Solve for x
x = 565,467,157,142,310.88/19,683,462.70 - Step 6: Final answer
x = 28,728,032.55
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1.5x scale
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.