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Finding the Fourth Proportional to 28,553.99, 42,832.17 and 8,832.92

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Solution

The fourth proportional to 28,553.99, 42,832.17 and 8,832.92 is: 13,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,553.99 : 42,832.17 = 8,832.92 : x
  2. Step 2: Convert to fraction form
    28,553.99/42,832.17 = 8,832.92/x
  3. Step 3: Cross multiply
    28,553.99x = 42,832.17 × 8,832.92
  4. Step 4: Simplify right side
    28,553.99x = 378,332,916.88
  5. Step 5: Solve for x
    x = 378,332,916.88/28,553.99
  6. Step 6: Final answer
    x = 13,249.74

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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.