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Finding the Fourth Proportional to 25,803.92, 38,651.21 and 19,494.43

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Solution

The fourth proportional to 25,803.92, 38,651.21 and 19,494.43 is: 29,200.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,803.92 : 38,651.21 = 19,494.43 : x
  2. Step 2: Convert to fraction form
    25,803.92/38,651.21 = 19,494.43/x
  3. Step 3: Cross multiply
    25,803.92x = 38,651.21 × 19,494.43
  4. Step 4: Simplify right side
    25,803.92x = 753,483,113.66
  5. Step 5: Solve for x
    x = 753,483,113.66/25,803.92
  6. Step 6: Final answer
    x = 29,200.33

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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.