Finding the Fourth Proportional to 10,684,687.22, 14,764,421.97 and 7,779,034.82
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Solution
The fourth proportional to 10,684,687.22, 14,764,421.97 and 7,779,034.82 is: 10,749,304.14
Step by Step Solution
- Step 1: Write the proportion equation
10,684,687.22 : 14,764,421.97 = 7,779,034.82 : x - Step 2: Convert to fraction form
10,684,687.22/14,764,421.97 = 7,779,034.82/x - Step 3: Cross multiply
10,684,687.22x = 14,764,421.97 × 7,779,034.82 - Step 4: Simplify right side
10,684,687.22x = 114,852,952,601,803 - Step 5: Solve for x
x = 114,852,952,601,803/10,684,687.22 - Step 6: Final answer
x = 10,749,304.14
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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.