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Finding the Fourth Proportional to 7,201.53, 10,800.18 and 2,520.68

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Solution

The fourth proportional to 7,201.53, 10,800.18 and 2,520.68 is: 3,780.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,201.53 : 10,800.18 = 2,520.68 : x
  2. Step 2: Convert to fraction form
    7,201.53/10,800.18 = 2,520.68/x
  3. Step 3: Cross multiply
    7,201.53x = 10,800.18 × 2,520.68
  4. Step 4: Simplify right side
    7,201.53x = 27,223,743.72
  5. Step 5: Solve for x
    x = 27,223,743.72/7,201.53
  6. Step 6: Final answer
    x = 3,780.27

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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.