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Finding the Fourth Proportional to 14,629.80, 20,520.60 and 14,629.80

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Solution

The fourth proportional to 14,629.80, 20,520.60 and 14,629.80 is: 20,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,629.80 : 20,520.60 = 14,629.80 : x
  2. Step 2: Convert to fraction form
    14,629.80/20,520.60 = 14,629.80/x
  3. Step 3: Cross multiply
    14,629.80x = 20,520.60 × 14,629.80
  4. Step 4: Simplify right side
    14,629.80x = 300,212,273.88
  5. Step 5: Solve for x
    x = 300,212,273.88/14,629.80
  6. Step 6: Final answer
    x = 20,520.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.