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Finding the Fourth Proportional to 28,593.52, 42,891.48 and 8,885.44

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Solution

The fourth proportional to 28,593.52, 42,891.48 and 8,885.44 is: 13,328.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,593.52 : 42,891.48 = 8,885.44 : x
  2. Step 2: Convert to fraction form
    28,593.52/42,891.48 = 8,885.44/x
  3. Step 3: Cross multiply
    28,593.52x = 42,891.48 × 8,885.44
  4. Step 4: Simplify right side
    28,593.52x = 381,109,672.05
  5. Step 5: Solve for x
    x = 381,109,672.05/28,593.52
  6. Step 6: Final answer
    x = 13,328.53

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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.