Finding the Fourth Proportional to 22,985,331.24, 31,718,801.16 and 12,531,121.32
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Solution
The fourth proportional to 22,985,331.24, 31,718,801.16 and 12,531,121.32 is: 17,292,426.26
Step by Step Solution
- Step 1: Write the proportion equation
22,985,331.24 : 31,718,801.16 = 12,531,121.32 : x - Step 2: Convert to fraction form
22,985,331.24/31,718,801.16 = 12,531,121.32/x - Step 3: Cross multiply
22,985,331.24x = 31,718,801.16 × 12,531,121.32 - Step 4: Simplify right side
22,985,331.24x = 397,472,145,460,916.75 - Step 5: Solve for x
x = 397,472,145,460,916.75/22,985,331.24 - Step 6: Final answer
x = 17,292,426.26
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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.