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Finding the Fourth Proportional to 13,383.40, 20,060.70 and 5,060.20

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Solution

The fourth proportional to 13,383.40, 20,060.70 and 5,060.20 is: 7,584.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383.40 : 20,060.70 = 5,060.20 : x
  2. Step 2: Convert to fraction form
    13,383.40/20,060.70 = 5,060.20/x
  3. Step 3: Cross multiply
    13,383.40x = 20,060.70 × 5,060.20
  4. Step 4: Simplify right side
    13,383.40x = 101,511,154.14
  5. Step 5: Solve for x
    x = 101,511,154.14/13,383.40
  6. Step 6: Final answer
    x = 7,584.86

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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.