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Finding the Fourth Proportional to 19,992.96, 29,998.08 and 10,765.44

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Solution

The fourth proportional to 19,992.96, 29,998.08 and 10,765.44 is: 16,152.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,992.96 : 29,998.08 = 10,765.44 : x
  2. Step 2: Convert to fraction form
    19,992.96/29,998.08 = 10,765.44/x
  3. Step 3: Cross multiply
    19,992.96x = 29,998.08 × 10,765.44
  4. Step 4: Simplify right side
    19,992.96x = 322,942,530.36
  5. Step 5: Solve for x
    x = 322,942,530.36/19,992.96
  6. Step 6: Final answer
    x = 16,152.81

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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.