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Finding the Fourth Proportional to 5,939.90, 8,894.37 and 5,764.55

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Solution

The fourth proportional to 5,939.90, 8,894.37 and 5,764.55 is: 8,631.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,939.90 : 8,894.37 = 5,764.55 : x
  2. Step 2: Convert to fraction form
    5,939.90/8,894.37 = 5,764.55/x
  3. Step 3: Cross multiply
    5,939.90x = 8,894.37 × 5,764.55
  4. Step 4: Simplify right side
    5,939.90x = 51,271,996.11
  5. Step 5: Solve for x
    x = 51,271,996.11/5,939.90
  6. Step 6: Final answer
    x = 8,631.80

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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.