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Finding the Fourth Proportional to 14,620.92, 20,157.12 and 12,627.24

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Solution

The fourth proportional to 14,620.92, 20,157.12 and 12,627.24 is: 17,408.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,620.92 : 20,157.12 = 12,627.24 : x
  2. Step 2: Convert to fraction form
    14,620.92/20,157.12 = 12,627.24/x
  3. Step 3: Cross multiply
    14,620.92x = 20,157.12 × 12,627.24
  4. Step 4: Simplify right side
    14,620.92x = 254,528,791.95
  5. Step 5: Solve for x
    x = 254,528,791.95/14,620.92
  6. Step 6: Final answer
    x = 17,408.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.