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Finding the Fourth Proportional to 5,757.78, 8,637.15 and 2,059.86

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Solution

The fourth proportional to 5,757.78, 8,637.15 and 2,059.86 is: 3,089.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,757.78 : 8,637.15 = 2,059.86 : x
  2. Step 2: Convert to fraction form
    5,757.78/8,637.15 = 2,059.86/x
  3. Step 3: Cross multiply
    5,757.78x = 8,637.15 × 2,059.86
  4. Step 4: Simplify right side
    5,757.78x = 17,791,319.80
  5. Step 5: Solve for x
    x = 17,791,319.80/5,757.78
  6. Step 6: Final answer
    x = 3,089.96

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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.