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Finding the Fourth Proportional to 16,923.60, 25,356.60 and 14,446.80

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Solution

The fourth proportional to 16,923.60, 25,356.60 and 14,446.80 is: 21,645.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,923.60 : 25,356.60 = 14,446.80 : x
  2. Step 2: Convert to fraction form
    16,923.60/25,356.60 = 14,446.80/x
  3. Step 3: Cross multiply
    16,923.60x = 25,356.60 × 14,446.80
  4. Step 4: Simplify right side
    16,923.60x = 366,321,728.88
  5. Step 5: Solve for x
    x = 366,321,728.88/16,923.60
  6. Step 6: Final answer
    x = 21,645.61

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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.