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Finding the Fourth Proportional to 13,793.94, 20,684.97 and 4,430.88

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Solution

The fourth proportional to 13,793.94, 20,684.97 and 4,430.88 is: 6,644.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,793.94 : 20,684.97 = 4,430.88 : x
  2. Step 2: Convert to fraction form
    13,793.94/20,684.97 = 4,430.88/x
  3. Step 3: Cross multiply
    13,793.94x = 20,684.97 × 4,430.88
  4. Step 4: Simplify right side
    13,793.94x = 91,652,619.87
  5. Step 5: Solve for x
    x = 91,652,619.87/13,793.94
  6. Step 6: Final answer
    x = 6,644.41

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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.