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Finding the Fourth Proportional to 89,891.44, 134,832.12 and 27,561.76

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Solution

The fourth proportional to 89,891.44, 134,832.12 and 27,561.76 is: 41,341.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,891.44 : 134,832.12 = 27,561.76 : x
  2. Step 2: Convert to fraction form
    89,891.44/134,832.12 = 27,561.76/x
  3. Step 3: Cross multiply
    89,891.44x = 134,832.12 × 27,561.76
  4. Step 4: Simplify right side
    89,891.44x = 3,716,210,531.73
  5. Step 5: Solve for x
    x = 3,716,210,531.73/89,891.44
  6. Step 6: Final answer
    x = 41,341.09

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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.