Finding the Fourth Proportional to 42,489.88, 63,736.01 and 14,410
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Solution
The fourth proportional to 42,489.88, 63,736.01 and 14,410 is: 21,615.40
Step by Step Solution
- Step 1: Write the proportion equation
42,489.88 : 63,736.01 = 14,410 : x - Step 2: Convert to fraction form
42,489.88/63,736.01 = 14,410/x - Step 3: Cross multiply
42,489.88x = 63,736.01 × 14,410 - Step 4: Simplify right side
42,489.88x = 918,435,904.10 - Step 5: Solve for x
x = 918,435,904.10/42,489.88 - Step 6: Final answer
x = 21,615.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.