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Finding the Fourth Proportional to 11,865.40, 17,797.94 and 4,843.86

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Solution

The fourth proportional to 11,865.40, 17,797.94 and 4,843.86 is: 7,265.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,865.40 : 17,797.94 = 4,843.86 : x
  2. Step 2: Convert to fraction form
    11,865.40/17,797.94 = 4,843.86/x
  3. Step 3: Cross multiply
    11,865.40x = 17,797.94 × 4,843.86
  4. Step 4: Simplify right side
    11,865.40x = 86,210,729.65
  5. Step 5: Solve for x
    x = 86,210,729.65/11,865.40
  6. Step 6: Final answer
    x = 7,265.72

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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.