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Finding the Fourth Proportional to 16,908.66, 25,369.47 and 7,672.50

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Solution

The fourth proportional to 16,908.66, 25,369.47 and 7,672.50 is: 11,511.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,908.66 : 25,369.47 = 7,672.50 : x
  2. Step 2: Convert to fraction form
    16,908.66/25,369.47 = 7,672.50/x
  3. Step 3: Cross multiply
    16,908.66x = 25,369.47 × 7,672.50
  4. Step 4: Simplify right side
    16,908.66x = 194,647,258.58
  5. Step 5: Solve for x
    x = 194,647,258.58/16,908.66
  6. Step 6: Final answer
    x = 11,511.69

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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.