Finding the Fourth Proportional to 19,665,551.86, 27,129,852.18 and 18,753,798.38
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Solution
The fourth proportional to 19,665,551.86, 27,129,852.18 and 18,753,798.38 is: 25,872,031.53
Step by Step Solution
- Step 1: Write the proportion equation
19,665,551.86 : 27,129,852.18 = 18,753,798.38 : x - Step 2: Convert to fraction form
19,665,551.86/27,129,852.18 = 18,753,798.38/x - Step 3: Cross multiply
19,665,551.86x = 27,129,852.18 × 18,753,798.38 - Step 4: Simplify right side
19,665,551.86x = 508,787,777,727,274.19 - Step 5: Solve for x
x = 508,787,777,727,274.19/19,665,551.86 - Step 6: Final answer
x = 25,872,031.53
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1.5x scale
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.