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Finding the Fourth Proportional to 28,676.92, 43,023.06 and 25,935.16

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Solution

The fourth proportional to 28,676.92, 43,023.06 and 25,935.16 is: 38,909.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,676.92 : 43,023.06 = 25,935.16 : x
  2. Step 2: Convert to fraction form
    28,676.92/43,023.06 = 25,935.16/x
  3. Step 3: Cross multiply
    28,676.92x = 43,023.06 × 25,935.16
  4. Step 4: Simplify right side
    28,676.92x = 1,115,809,944.79
  5. Step 5: Solve for x
    x = 1,115,809,944.79/28,676.92
  6. Step 6: Final answer
    x = 38,909.69

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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.