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Finding the Fourth Proportional to 10,893.88, 16,331.10 and 5,690.44

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Solution

The fourth proportional to 10,893.88, 16,331.10 and 5,690.44 is: 8,530.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,893.88 : 16,331.10 = 5,690.44 : x
  2. Step 2: Convert to fraction form
    10,893.88/16,331.10 = 5,690.44/x
  3. Step 3: Cross multiply
    10,893.88x = 16,331.10 × 5,690.44
  4. Step 4: Simplify right side
    10,893.88x = 92,931,144.68
  5. Step 5: Solve for x
    x = 92,931,144.68/10,893.88
  6. Step 6: Final answer
    x = 8,530.58

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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.