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Finding the Fourth Proportional to 13,800.92, 20,701.72 and 5,035.83

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Solution

The fourth proportional to 13,800.92, 20,701.72 and 5,035.83 is: 7,553.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.92 : 20,701.72 = 5,035.83 : x
  2. Step 2: Convert to fraction form
    13,800.92/20,701.72 = 5,035.83/x
  3. Step 3: Cross multiply
    13,800.92x = 20,701.72 × 5,035.83
  4. Step 4: Simplify right side
    13,800.92x = 104,250,317.45
  5. Step 5: Solve for x
    x = 104,250,317.45/13,800.92
  6. Step 6: Final answer
    x = 7,553.87

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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.