Finding the Fourth Proportional to 19,453,421.76, 26,849,055.68 and 11,309,383.68
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Solution
The fourth proportional to 19,453,421.76, 26,849,055.68 and 11,309,383.68 is: 15,608,887.52
Step by Step Solution
- Step 1: Write the proportion equation
19,453,421.76 : 26,849,055.68 = 11,309,383.68 : x - Step 2: Convert to fraction form
19,453,421.76/26,849,055.68 = 11,309,383.68/x - Step 3: Cross multiply
19,453,421.76x = 26,849,055.68 × 11,309,383.68 - Step 4: Simplify right side
19,453,421.76x = 303,646,272,130,803.31 - Step 5: Solve for x
x = 303,646,272,130,803.31/19,453,421.76 - Step 6: Final answer
x = 15,608,887.52
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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.