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Finding the Fourth Proportional to 14,481.64, 21,722.23 and 4,620.86

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Solution

The fourth proportional to 14,481.64, 21,722.23 and 4,620.86 is: 6,931.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,481.64 : 21,722.23 = 4,620.86 : x
  2. Step 2: Convert to fraction form
    14,481.64/21,722.23 = 4,620.86/x
  3. Step 3: Cross multiply
    14,481.64x = 21,722.23 × 4,620.86
  4. Step 4: Simplify right side
    14,481.64x = 100,375,383.72
  5. Step 5: Solve for x
    x = 100,375,383.72/14,481.64
  6. Step 6: Final answer
    x = 6,931.22

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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.