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Finding the Fourth Proportional to 15,757.20, 23,634.20 and 5,368.80

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Solution

The fourth proportional to 15,757.20, 23,634.20 and 5,368.80 is: 8,052.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,757.20 : 23,634.20 = 5,368.80 : x
  2. Step 2: Convert to fraction form
    15,757.20/23,634.20 = 5,368.80/x
  3. Step 3: Cross multiply
    15,757.20x = 23,634.20 × 5,368.80
  4. Step 4: Simplify right side
    15,757.20x = 126,887,292.96
  5. Step 5: Solve for x
    x = 126,887,292.96/15,757.20
  6. Step 6: Final answer
    x = 8,052.65

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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.