Finding the Fourth Proportional to 13,768,691.41, 19,000,813.41 and 7,657,119.91
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Solution
The fourth proportional to 13,768,691.41, 19,000,813.41 and 7,657,119.91 is: 10,566,836.19
Step by Step Solution
- Step 1: Write the proportion equation
13,768,691.41 : 19,000,813.41 = 7,657,119.91 : x - Step 2: Convert to fraction form
13,768,691.41/19,000,813.41 = 7,657,119.91/x - Step 3: Cross multiply
13,768,691.41x = 19,000,813.41 × 7,657,119.91 - Step 4: Simplify right side
13,768,691.41x = 145,491,506,667,906 - Step 5: Solve for x
x = 145,491,506,667,906/13,768,691.41 - Step 6: Final answer
x = 10,566,836.19
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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.