Finding the Fourth Proportional to 7,023,117.57, 9,691,874.19 and 3,925,637.57
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Solution
The fourth proportional to 7,023,117.57, 9,691,874.19 and 3,925,637.57 is: 5,417,364.17
Step by Step Solution
- Step 1: Write the proportion equation
7,023,117.57 : 9,691,874.19 = 3,925,637.57 : x - Step 2: Convert to fraction form
7,023,117.57/9,691,874.19 = 3,925,637.57/x - Step 3: Cross multiply
7,023,117.57x = 9,691,874.19 × 3,925,637.57 - Step 4: Simplify right side
7,023,117.57x = 38,046,785,424,349.13 - Step 5: Solve for x
x = 38,046,785,424,349.13/7,023,117.57 - Step 6: Final answer
x = 5,417,364.17
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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.