Finding the Fourth Proportional to 19,708,775.51, 27,000,572.11 and 18,971,920.53
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Solution
The fourth proportional to 19,708,775.51, 27,000,572.11 and 18,971,920.53 is: 25,991,097.63
Step by Step Solution
- Step 1: Write the proportion equation
19,708,775.51 : 27,000,572.11 = 18,971,920.53 : x - Step 2: Convert to fraction form
19,708,775.51/27,000,572.11 = 18,971,920.53/x - Step 3: Cross multiply
19,708,775.51x = 27,000,572.11 × 18,971,920.53 - Step 4: Simplify right side
19,708,775.51x = 512,252,708,288,024.69 - Step 5: Solve for x
x = 512,252,708,288,024.69/19,708,775.51 - Step 6: Final answer
x = 25,991,097.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.