Finding the Fourth Proportional to 23,023,232.78, 31,771,226.90 and 12,709,734.44
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Solution
The fourth proportional to 23,023,232.78, 31,771,226.90 and 12,709,734.44 is: 17,538,972.94
Step by Step Solution
- Step 1: Write the proportion equation
23,023,232.78 : 31,771,226.90 = 12,709,734.44 : x - Step 2: Convert to fraction form
23,023,232.78/31,771,226.90 = 12,709,734.44/x - Step 3: Cross multiply
23,023,232.78x = 31,771,226.90 × 12,709,734.44 - Step 4: Simplify right side
23,023,232.78x = 403,803,856,731,984.38 - Step 5: Solve for x
x = 403,803,856,731,984.38/23,023,232.78 - Step 6: Final answer
x = 17,538,972.94
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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.