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Finding the Fourth Proportional to 12,800.66, 19,183.03 and 4,894.65

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Solution

The fourth proportional to 12,800.66, 19,183.03 and 4,894.65 is: 7,335.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.66 : 19,183.03 = 4,894.65 : x
  2. Step 2: Convert to fraction form
    12,800.66/19,183.03 = 4,894.65/x
  3. Step 3: Cross multiply
    12,800.66x = 19,183.03 × 4,894.65
  4. Step 4: Simplify right side
    12,800.66x = 93,894,205.55
  5. Step 5: Solve for x
    x = 93,894,205.55/12,800.66
  6. Step 6: Final answer
    x = 7,335.11

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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.