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Finding the Fourth Proportional to 25,860.11, 38,788.11 and 8,093.48

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Solution

The fourth proportional to 25,860.11, 38,788.11 and 8,093.48 is: 12,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,860.11 : 38,788.11 = 8,093.48 : x
  2. Step 2: Convert to fraction form
    25,860.11/38,788.11 = 8,093.48/x
  3. Step 3: Cross multiply
    25,860.11x = 38,788.11 × 8,093.48
  4. Step 4: Simplify right side
    25,860.11x = 313,930,598.58
  5. Step 5: Solve for x
    x = 313,930,598.58/25,860.11
  6. Step 6: Final answer
    x = 12,139.57

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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.