Finding the Fourth Proportional to 21,160,132.40, 29,691,370 and 21,160,132.40
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Solution
The fourth proportional to 21,160,132.40, 29,691,370 and 21,160,132.40 is: 29,691,370.00
Step by Step Solution
- Step 1: Write the proportion equation
21,160,132.40 : 29,691,370 = 21,160,132.40 : x - Step 2: Convert to fraction form
21,160,132.40/29,691,370 = 21,160,132.40/x - Step 3: Cross multiply
21,160,132.40x = 29,691,370 × 21,160,132.40 - Step 4: Simplify right side
21,160,132.40x = 628,273,320,337,388 - Step 5: Solve for x
x = 628,273,320,337,388/21,160,132.40 - Step 6: Final answer
x = 29,691,370.00
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.