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Finding the Fourth Proportional to 28,742.48, 43,095.92 and 12,093.92

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Solution

The fourth proportional to 28,742.48, 43,095.92 and 12,093.92 is: 18,133.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.48 : 43,095.92 = 12,093.92 : x
  2. Step 2: Convert to fraction form
    28,742.48/43,095.92 = 12,093.92/x
  3. Step 3: Cross multiply
    28,742.48x = 43,095.92 × 12,093.92
  4. Step 4: Simplify right side
    28,742.48x = 521,198,608.81
  5. Step 5: Solve for x
    x = 521,198,608.81/28,742.48
  6. Step 6: Final answer
    x = 18,133.39

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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.