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Finding the Fourth Proportional to 11,237.92, 16,843.76 and 8,455.65

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Solution

The fourth proportional to 11,237.92, 16,843.76 and 8,455.65 is: 12,673.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,237.92 : 16,843.76 = 8,455.65 : x
  2. Step 2: Convert to fraction form
    11,237.92/16,843.76 = 8,455.65/x
  3. Step 3: Cross multiply
    11,237.92x = 16,843.76 × 8,455.65
  4. Step 4: Simplify right side
    11,237.92x = 142,424,939.24
  5. Step 5: Solve for x
    x = 142,424,939.24/11,237.92
  6. Step 6: Final answer
    x = 12,673.60

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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.