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Finding the Fourth Proportional to 16,711.76, 25,067.64 and 13,576.88

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Solution

The fourth proportional to 16,711.76, 25,067.64 and 13,576.88 is: 20,365.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,711.76 : 25,067.64 = 13,576.88 : x
  2. Step 2: Convert to fraction form
    16,711.76/25,067.64 = 13,576.88/x
  3. Step 3: Cross multiply
    16,711.76x = 25,067.64 × 13,576.88
  4. Step 4: Simplify right side
    16,711.76x = 340,340,340.16
  5. Step 5: Solve for x
    x = 340,340,340.16/16,711.76
  6. Step 6: Final answer
    x = 20,365.32

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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.