Finding the Fourth Proportional to 13,888,653.59, 19,166,134.37 and 7,693,681.75
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Solution
The fourth proportional to 13,888,653.59, 19,166,134.37 and 7,693,681.75 is: 10,617,165.81
Step by Step Solution
- Step 1: Write the proportion equation
13,888,653.59 : 19,166,134.37 = 7,693,681.75 : x - Step 2: Convert to fraction form
13,888,653.59/19,166,134.37 = 7,693,681.75/x - Step 3: Cross multiply
13,888,653.59x = 19,166,134.37 × 7,693,681.75 - Step 4: Simplify right side
13,888,653.59x = 147,458,138,134,132.97 - Step 5: Solve for x
x = 147,458,138,134,132.97/13,888,653.59 - Step 6: Final answer
x = 10,617,165.81
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.