Finding the Fourth Proportional to 14,108.12, 19,468.32 and 7,820
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Solution
The fourth proportional to 14,108.12, 19,468.32 and 7,820 is: 10,791.11
Step by Step Solution
- Step 1: Write the proportion equation
14,108.12 : 19,468.32 = 7,820 : x - Step 2: Convert to fraction form
14,108.12/19,468.32 = 7,820/x - Step 3: Cross multiply
14,108.12x = 19,468.32 × 7,820 - Step 4: Simplify right side
14,108.12x = 152,242,262.40 - Step 5: Solve for x
x = 152,242,262.40/14,108.12 - Step 6: Final answer
x = 10,791.11
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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.