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Finding the Fourth Proportional to 5,817.54, 8,720.24 and 2,851.88

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Solution

The fourth proportional to 5,817.54, 8,720.24 and 2,851.88 is: 4,274.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,817.54 : 8,720.24 = 2,851.88 : x
  2. Step 2: Convert to fraction form
    5,817.54/8,720.24 = 2,851.88/x
  3. Step 3: Cross multiply
    5,817.54x = 8,720.24 × 2,851.88
  4. Step 4: Simplify right side
    5,817.54x = 24,869,053.73
  5. Step 5: Solve for x
    x = 24,869,053.73/5,817.54
  6. Step 6: Final answer
    x = 4,274.84

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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.