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Finding the Fourth Proportional to 13,358.56, 20,039.04 and 4,593.54

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Solution

The fourth proportional to 13,358.56, 20,039.04 and 4,593.54 is: 6,890.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.56 : 20,039.04 = 4,593.54 : x
  2. Step 2: Convert to fraction form
    13,358.56/20,039.04 = 4,593.54/x
  3. Step 3: Cross multiply
    13,358.56x = 20,039.04 × 4,593.54
  4. Step 4: Simplify right side
    13,358.56x = 92,050,131.80
  5. Step 5: Solve for x
    x = 92,050,131.80/13,358.56
  6. Step 6: Final answer
    x = 6,890.72

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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.