Finding the Fourth Proportional to 19,708,728.28, 27,000,505.92 and 18,971,871.96
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Solution
The fourth proportional to 19,708,728.28, 27,000,505.92 and 18,971,871.96 is: 25,991,029.65
Step by Step Solution
- Step 1: Write the proportion equation
19,708,728.28 : 27,000,505.92 = 18,971,871.96 : x - Step 2: Convert to fraction form
19,708,728.28/27,000,505.92 = 18,971,871.96/x - Step 3: Cross multiply
19,708,728.28x = 27,000,505.92 × 18,971,871.96 - Step 4: Simplify right side
19,708,728.28x = 512,250,141,169,462.06 - Step 5: Solve for x
x = 512,250,141,169,462.06/19,708,728.28 - Step 6: Final answer
x = 25,991,029.65
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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.