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Finding the Fourth Proportional to 13,380.40, 20,070.80 and 5,064.33

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Solution

The fourth proportional to 13,380.40, 20,070.80 and 5,064.33 is: 7,596.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.40 : 20,070.80 = 5,064.33 : x
  2. Step 2: Convert to fraction form
    13,380.40/20,070.80 = 5,064.33/x
  3. Step 3: Cross multiply
    13,380.40x = 20,070.80 × 5,064.33
  4. Step 4: Simplify right side
    13,380.40x = 101,645,154.56
  5. Step 5: Solve for x
    x = 101,645,154.56/13,380.40
  6. Step 6: Final answer
    x = 7,596.57

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.