Finding the Fourth Proportional to 36,004,392.16, 49,686,373.74 and 21,128,620.48
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Solution
The fourth proportional to 36,004,392.16, 49,686,373.74 and 21,128,620.48 is: 29,157,679.68
Step by Step Solution
- Step 1: Write the proportion equation
36,004,392.16 : 49,686,373.74 = 21,128,620.48 : x - Step 2: Convert to fraction form
36,004,392.16/49,686,373.74 = 21,128,620.48/x - Step 3: Cross multiply
36,004,392.16x = 49,686,373.74 × 21,128,620.48 - Step 4: Simplify right side
36,004,392.16x = 1,049,804,533,779,898.25 - Step 5: Solve for x
x = 1,049,804,533,779,898.25/36,004,392.16 - Step 6: Final answer
x = 29,157,679.68
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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.