Finding the Fourth Proportional to 35,630,146.70, 53,445,220.05 and 30,528,313.10
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Solution
The fourth proportional to 35,630,146.70, 53,445,220.05 and 30,528,313.10 is: 45,792,469.65
Step by Step Solution
- Step 1: Write the proportion equation
35,630,146.70 : 53,445,220.05 = 30,528,313.10 : x - Step 2: Convert to fraction form
35,630,146.70/53,445,220.05 = 30,528,313.10/x - Step 3: Cross multiply
35,630,146.70x = 53,445,220.05 × 30,528,313.10 - Step 4: Simplify right side
35,630,146.70x = 1,631,592,411,384,797.75 - Step 5: Solve for x
x = 1,631,592,411,384,797.75/35,630,146.70 - Step 6: Final answer
x = 45,792,469.65
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.