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Finding the Fourth Proportional to 19,992.90, 29,993.61 and 5,952.99

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Solution

The fourth proportional to 19,992.90, 29,993.61 and 5,952.99 is: 8,930.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,992.90 : 29,993.61 = 5,952.99 : x
  2. Step 2: Convert to fraction form
    19,992.90/29,993.61 = 5,952.99/x
  3. Step 3: Cross multiply
    19,992.90x = 29,993.61 × 5,952.99
  4. Step 4: Simplify right side
    19,992.90x = 178,551,660.39
  5. Step 5: Solve for x
    x = 178,551,660.39/19,992.90
  6. Step 6: Final answer
    x = 8,930.75

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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.