Finding the Fourth Proportional to 7,013,058.84, 9,677,926.62 and 3,915,629.64
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Solution
The fourth proportional to 7,013,058.84, 9,677,926.62 and 3,915,629.64 is: 5,403,516.10
Step by Step Solution
- Step 1: Write the proportion equation
7,013,058.84 : 9,677,926.62 = 3,915,629.64 : x - Step 2: Convert to fraction form
7,013,058.84/9,677,926.62 = 3,915,629.64/x - Step 3: Cross multiply
7,013,058.84x = 9,677,926.62 × 3,915,629.64 - Step 4: Simplify right side
7,013,058.84x = 37,895,176,327,017.02 - Step 5: Solve for x
x = 37,895,176,327,017.02/7,013,058.84 - Step 6: Final answer
x = 5,403,516.10
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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.