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Finding the Fourth Proportional to 8,601.65, 12,893.97 and 4,151.11

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Solution

The fourth proportional to 8,601.65, 12,893.97 and 4,151.11 is: 6,222.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.65 : 12,893.97 = 4,151.11 : x
  2. Step 2: Convert to fraction form
    8,601.65/12,893.97 = 4,151.11/x
  3. Step 3: Cross multiply
    8,601.65x = 12,893.97 × 4,151.11
  4. Step 4: Simplify right side
    8,601.65x = 53,524,287.81
  5. Step 5: Solve for x
    x = 53,524,287.81/8,601.65
  6. Step 6: Final answer
    x = 6,222.56

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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.