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Finding the Fourth Proportional to 17,066.40, 25,600.40 and 5,380.52

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Solution

The fourth proportional to 17,066.40, 25,600.40 and 5,380.52 is: 8,071.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,066.40 : 25,600.40 = 5,380.52 : x
  2. Step 2: Convert to fraction form
    17,066.40/25,600.40 = 5,380.52/x
  3. Step 3: Cross multiply
    17,066.40x = 25,600.40 × 5,380.52
  4. Step 4: Simplify right side
    17,066.40x = 137,743,464.21
  5. Step 5: Solve for x
    x = 137,743,464.21/17,066.40
  6. Step 6: Final answer
    x = 8,071.03

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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.