Finding the Fourth Proportional to 28,614,434.08, 39,467,931.60 and 19,431,133.60
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Solution
The fourth proportional to 28,614,434.08, 39,467,931.60 and 19,431,133.60 is: 26,801,391.55
Step by Step Solution
- Step 1: Write the proportion equation
28,614,434.08 : 39,467,931.60 = 19,431,133.60 : x - Step 2: Convert to fraction form
28,614,434.08/39,467,931.60 = 19,431,133.60/x - Step 3: Cross multiply
28,614,434.08x = 39,467,931.60 × 19,431,133.60 - Step 4: Simplify right side
28,614,434.08x = 766,906,651,835,261.88 - Step 5: Solve for x
x = 766,906,651,835,261.88/28,614,434.08 - Step 6: Final answer
x = 26,801,391.55
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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.