Finding the Fourth Proportional to 28,618,528, 39,489,984.11 and 19,346,272.68
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Solution
The fourth proportional to 28,618,528, 39,489,984.11 and 19,346,272.68 is: 26,695,433.13
Step by Step Solution
- Step 1: Write the proportion equation
28,618,528 : 39,489,984.11 = 19,346,272.68 : x - Step 2: Convert to fraction form
28,618,528/39,489,984.11 = 19,346,272.68/x - Step 3: Cross multiply
28,618,528x = 39,489,984.11 × 19,346,272.68 - Step 4: Simplify right side
28,618,528x = 763,984,000,426,745.75 - Step 5: Solve for x
x = 763,984,000,426,745.75/28,618,528 - Step 6: Final answer
x = 26,695,433.13
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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.