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Finding the Fourth Proportional to 87,791.29, 131,673.15 and 28,626.67

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Solution

The fourth proportional to 87,791.29, 131,673.15 and 28,626.67 is: 42,935.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,791.29 : 131,673.15 = 28,626.67 : x
  2. Step 2: Convert to fraction form
    87,791.29/131,673.15 = 28,626.67/x
  3. Step 3: Cross multiply
    87,791.29x = 131,673.15 × 28,626.67
  4. Step 4: Simplify right side
    87,791.29x = 3,769,363,154.54
  5. Step 5: Solve for x
    x = 3,769,363,154.54/87,791.29
  6. Step 6: Final answer
    x = 42,935.50

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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.