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Finding the Fourth Proportional to 16,940.64, 25,383.24 and 10,256.88

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Solution

The fourth proportional to 16,940.64, 25,383.24 and 10,256.88 is: 15,368.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,940.64 : 25,383.24 = 10,256.88 : x
  2. Step 2: Convert to fraction form
    16,940.64/25,383.24 = 10,256.88/x
  3. Step 3: Cross multiply
    16,940.64x = 25,383.24 × 10,256.88
  4. Step 4: Simplify right side
    16,940.64x = 260,352,846.69
  5. Step 5: Solve for x
    x = 260,352,846.69/16,940.64
  6. Step 6: Final answer
    x = 15,368.54

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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.