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Finding the Fourth Proportional to 5,388.76, 8,083.14 and 3,080.92

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Solution

The fourth proportional to 5,388.76, 8,083.14 and 3,080.92 is: 4,621.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.76 : 8,083.14 = 3,080.92 : x
  2. Step 2: Convert to fraction form
    5,388.76/8,083.14 = 3,080.92/x
  3. Step 3: Cross multiply
    5,388.76x = 8,083.14 × 3,080.92
  4. Step 4: Simplify right side
    5,388.76x = 24,903,507.69
  5. Step 5: Solve for x
    x = 24,903,507.69/5,388.76
  6. Step 6: Final answer
    x = 4,621.38

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Similar ratio
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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.