Finding the Fourth Proportional to 19,149,938.30, 28,556,251.08 and 18,977,219.97
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Solution
The fourth proportional to 19,149,938.30, 28,556,251.08 and 18,977,219.97 is: 28,298,694.74
Step by Step Solution
- Step 1: Write the proportion equation
19,149,938.30 : 28,556,251.08 = 18,977,219.97 : x - Step 2: Convert to fraction form
19,149,938.30/28,556,251.08 = 18,977,219.97/x - Step 3: Cross multiply
19,149,938.30x = 28,556,251.08 × 18,977,219.97 - Step 4: Simplify right side
19,149,938.30x = 541,918,258,263,710 - Step 5: Solve for x
x = 541,918,258,263,710/19,149,938.30 - Step 6: Final answer
x = 28,298,694.74
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.