Finding the Fourth Proportional to 7,370,981.51, 10,171,988.57 and 4,275,337.68
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Solution
The fourth proportional to 7,370,981.51, 10,171,988.57 and 4,275,337.68 is: 5,899,985.77
Step by Step Solution
- Step 1: Write the proportion equation
7,370,981.51 : 10,171,988.57 = 4,275,337.68 : x - Step 2: Convert to fraction form
7,370,981.51/10,171,988.57 = 4,275,337.68/x - Step 3: Cross multiply
7,370,981.51x = 10,171,988.57 × 4,275,337.68 - Step 4: Simplify right side
7,370,981.51x = 43,488,686,024,538.66 - Step 5: Solve for x
x = 43,488,686,024,538.66/7,370,981.51 - Step 6: Final answer
x = 5,899,985.77
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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.