Finding the Fourth Proportional to 22,556,974.84, 31,127,819.86 and 12,767,208.84
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Solution
The fourth proportional to 22,556,974.84, 31,127,819.86 and 12,767,208.84 is: 17,618,292.33
Step by Step Solution
- Step 1: Write the proportion equation
22,556,974.84 : 31,127,819.86 = 12,767,208.84 : x - Step 2: Convert to fraction form
22,556,974.84/31,127,819.86 = 12,767,208.84/x - Step 3: Cross multiply
22,556,974.84x = 31,127,819.86 × 12,767,208.84 - Step 4: Simplify right side
22,556,974.84x = 397,415,376,779,045.75 - Step 5: Solve for x
x = 397,415,376,779,045.75/22,556,974.84 - Step 6: Final answer
x = 17,618,292.33
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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.