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Finding the Fourth Proportional to 15,024.75, 20,735.12 and 8,400.75

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Solution

The fourth proportional to 15,024.75, 20,735.12 and 8,400.75 is: 11,593.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,024.75 : 20,735.12 = 8,400.75 : x
  2. Step 2: Convert to fraction form
    15,024.75/20,735.12 = 8,400.75/x
  3. Step 3: Cross multiply
    15,024.75x = 20,735.12 × 8,400.75
  4. Step 4: Simplify right side
    15,024.75x = 174,190,517.34
  5. Step 5: Solve for x
    x = 174,190,517.34/15,024.75
  6. Step 6: Final answer
    x = 11,593.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.