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Finding the Fourth Proportional to 16,653.78, 24,993.05 and 7,888.73

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Solution

The fourth proportional to 16,653.78, 24,993.05 and 7,888.73 is: 11,838.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,653.78 : 24,993.05 = 7,888.73 : x
  2. Step 2: Convert to fraction form
    16,653.78/24,993.05 = 7,888.73/x
  3. Step 3: Cross multiply
    16,653.78x = 24,993.05 × 7,888.73
  4. Step 4: Simplify right side
    16,653.78x = 197,163,258.92
  5. Step 5: Solve for x
    x = 197,163,258.92/16,653.78
  6. Step 6: Final answer
    x = 11,838.95

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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.