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Finding the Fourth Proportional to 11,863.52, 17,799.52 and 5,289.12

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Solution

The fourth proportional to 11,863.52, 17,799.52 and 5,289.12 is: 7,935.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,863.52 : 17,799.52 = 5,289.12 : x
  2. Step 2: Convert to fraction form
    11,863.52/17,799.52 = 5,289.12/x
  3. Step 3: Cross multiply
    11,863.52x = 17,799.52 × 5,289.12
  4. Step 4: Simplify right side
    11,863.52x = 94,143,797.22
  5. Step 5: Solve for x
    x = 94,143,797.22/11,863.52
  6. Step 6: Final answer
    x = 7,935.57

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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.