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Finding the Fourth Proportional to 11,992.95, 17,992.46 and 4,201.56

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Solution

The fourth proportional to 11,992.95, 17,992.46 and 4,201.56 is: 6,303.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.95 : 17,992.46 = 4,201.56 : x
  2. Step 2: Convert to fraction form
    11,992.95/17,992.46 = 4,201.56/x
  3. Step 3: Cross multiply
    11,992.95x = 17,992.46 × 4,201.56
  4. Step 4: Simplify right side
    11,992.95x = 75,596,400.24
  5. Step 5: Solve for x
    x = 75,596,400.24/11,992.95
  6. Step 6: Final answer
    x = 6,303.40

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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.