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Finding the Fourth Proportional to 33,930.60, 50,890.22 and 10,555.21

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Solution

The fourth proportional to 33,930.60, 50,890.22 and 10,555.21 is: 15,831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,930.60 : 50,890.22 = 10,555.21 : x
  2. Step 2: Convert to fraction form
    33,930.60/50,890.22 = 10,555.21/x
  3. Step 3: Cross multiply
    33,930.60x = 50,890.22 × 10,555.21
  4. Step 4: Simplify right side
    33,930.60x = 537,156,959.05
  5. Step 5: Solve for x
    x = 537,156,959.05/33,930.60
  6. Step 6: Final answer
    x = 15,831.05

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1.5x scale

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.