Finding the Fourth Proportional to 28,181,118.23, 38,866,886.18 and 19,836,113.08
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Solution
The fourth proportional to 28,181,118.23, 38,866,886.18 and 19,836,113.08 is: 27,357,606.71
Step by Step Solution
- Step 1: Write the proportion equation
28,181,118.23 : 38,866,886.18 = 19,836,113.08 : x - Step 2: Convert to fraction form
28,181,118.23/38,866,886.18 = 19,836,113.08/x - Step 3: Cross multiply
28,181,118.23x = 38,866,886.18 × 19,836,113.08 - Step 4: Simplify right side
28,181,118.23x = 770,967,949,137,621.38 - Step 5: Solve for x
x = 770,967,949,137,621.38/28,181,118.23 - Step 6: Final answer
x = 27,357,606.71
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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.