Finding the Fourth Proportional to 18,979,528.16, 26,193,622.32 and 10,831,985.12
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Solution
The fourth proportional to 18,979,528.16, 26,193,622.32 and 10,831,985.12 is: 14,949,208.69
Step by Step Solution
- Step 1: Write the proportion equation
18,979,528.16 : 26,193,622.32 = 10,831,985.12 : x - Step 2: Convert to fraction form
18,979,528.16/26,193,622.32 = 10,831,985.12/x - Step 3: Cross multiply
18,979,528.16x = 26,193,622.32 × 10,831,985.12 - Step 4: Simplify right side
18,979,528.16x = 283,728,927,209,139.88 - Step 5: Solve for x
x = 283,728,927,209,139.88/18,979,528.16 - Step 6: Final answer
x = 14,949,208.69
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1.5x scale
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.