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Finding the Fourth Proportional to 16,874.40, 25,311.60 and 11,949.60

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Solution

The fourth proportional to 16,874.40, 25,311.60 and 11,949.60 is: 17,924.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,874.40 : 25,311.60 = 11,949.60 : x
  2. Step 2: Convert to fraction form
    16,874.40/25,311.60 = 11,949.60/x
  3. Step 3: Cross multiply
    16,874.40x = 25,311.60 × 11,949.60
  4. Step 4: Simplify right side
    16,874.40x = 302,463,495.36
  5. Step 5: Solve for x
    x = 302,463,495.36/16,874.40
  6. Step 6: Final answer
    x = 17,924.40

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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.