Finding the Third Proportional to 7,611.75 and 15,432.75
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Solution
The third proportional to 7,611.75 and 15,432.75 is: 31,289.75
Step by Step Solution
- Step 1: Write the proportion equation
7,611.75 : 15,432.75 = 15,432.75 : x - Step 2: Convert to fraction form
7,611.75/15,432.75 = 15,432.75/x - Step 3: Cross multiply
7,611.75x = 15,432.75 × 15,432.75 - Step 4: Simplify right side
7,611.75x = 238,169,772.56 - Step 5: Solve for x
x = 238,169,772.56/7,611.75 - Step 6: Final answer
x = 31,289.75
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Why These Related Problems?
These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.