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Finding the Fourth Proportional to 33,885.52, 50,831.16 and 11,689.90

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Solution

The fourth proportional to 33,885.52, 50,831.16 and 11,689.90 is: 17,535.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,885.52 : 50,831.16 = 11,689.90 : x
  2. Step 2: Convert to fraction form
    33,885.52/50,831.16 = 11,689.90/x
  3. Step 3: Cross multiply
    33,885.52x = 50,831.16 × 11,689.90
  4. Step 4: Simplify right side
    33,885.52x = 594,211,177.28
  5. Step 5: Solve for x
    x = 594,211,177.28/33,885.52
  6. Step 6: Final answer
    x = 17,535.84

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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.