Finding the Fourth Proportional to 13,162,202.53, 18,163,302.91 and 7,655,735.66
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Solution
The fourth proportional to 13,162,202.53, 18,163,302.91 and 7,655,735.66 is: 10,564,603.10
Step by Step Solution
- Step 1: Write the proportion equation
13,162,202.53 : 18,163,302.91 = 7,655,735.66 : x - Step 2: Convert to fraction form
13,162,202.53/18,163,302.91 = 7,655,735.66/x - Step 3: Cross multiply
13,162,202.53x = 18,163,302.91 × 7,655,735.66 - Step 4: Simplify right side
13,162,202.53x = 139,053,445,681,512.91 - Step 5: Solve for x
x = 139,053,445,681,512.91/13,162,202.53 - Step 6: Final answer
x = 10,564,603.10
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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.