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Finding the Fourth Proportional to 5,991.87, 8,989.28 and 1,831.95

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Solution

The fourth proportional to 5,991.87, 8,989.28 and 1,831.95 is: 2,748.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,991.87 : 8,989.28 = 1,831.95 : x
  2. Step 2: Convert to fraction form
    5,991.87/8,989.28 = 1,831.95/x
  3. Step 3: Cross multiply
    5,991.87x = 8,989.28 × 1,831.95
  4. Step 4: Simplify right side
    5,991.87x = 16,467,911.50
  5. Step 5: Solve for x
    x = 16,467,911.50/5,991.87
  6. Step 6: Final answer
    x = 2,748.38

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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.