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Finding the Fourth Proportional to 29,920.76, 44,831.54 and 18,198.52

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Solution

The fourth proportional to 29,920.76, 44,831.54 and 18,198.52 is: 27,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,920.76 : 44,831.54 = 18,198.52 : x
  2. Step 2: Convert to fraction form
    29,920.76/44,831.54 = 18,198.52/x
  3. Step 3: Cross multiply
    29,920.76x = 44,831.54 × 18,198.52
  4. Step 4: Simplify right side
    29,920.76x = 815,867,677.32
  5. Step 5: Solve for x
    x = 815,867,677.32/29,920.76
  6. Step 6: Final answer
    x = 27,267.61

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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.