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Finding the Fourth Proportional to 16,393.20, 24,602.60 and 7,629.20

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Solution

The fourth proportional to 16,393.20, 24,602.60 and 7,629.20 is: 11,449.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,393.20 : 24,602.60 = 7,629.20 : x
  2. Step 2: Convert to fraction form
    16,393.20/24,602.60 = 7,629.20/x
  3. Step 3: Cross multiply
    16,393.20x = 24,602.60 × 7,629.20
  4. Step 4: Simplify right side
    16,393.20x = 187,698,155.92
  5. Step 5: Solve for x
    x = 187,698,155.92/16,393.20
  6. Step 6: Final answer
    x = 11,449.76

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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.