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Finding the Fourth Proportional to 5,671.76, 8,496.42 and 3,888.44

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Solution

The fourth proportional to 5,671.76, 8,496.42 and 3,888.44 is: 5,824.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.76 : 8,496.42 = 3,888.44 : x
  2. Step 2: Convert to fraction form
    5,671.76/8,496.42 = 3,888.44/x
  3. Step 3: Cross multiply
    5,671.76x = 8,496.42 × 3,888.44
  4. Step 4: Simplify right side
    5,671.76x = 33,037,819.38
  5. Step 5: Solve for x
    x = 33,037,819.38/5,671.76
  6. Step 6: Final answer
    x = 5,824.97

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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.