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Finding the Fourth Proportional to 16,120.80, 22,246.92 and 9,046.80

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Solution

The fourth proportional to 16,120.80, 22,246.92 and 9,046.80 is: 12,484.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,120.80 : 22,246.92 = 9,046.80 : x
  2. Step 2: Convert to fraction form
    16,120.80/22,246.92 = 9,046.80/x
  3. Step 3: Cross multiply
    16,120.80x = 22,246.92 × 9,046.80
  4. Step 4: Simplify right side
    16,120.80x = 201,263,435.86
  5. Step 5: Solve for x
    x = 201,263,435.86/16,120.80
  6. Step 6: Final answer
    x = 12,484.71

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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.