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Finding the Fourth Proportional to 18,792.66, 28,170.36 and 10,476.48

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Solution

The fourth proportional to 18,792.66, 28,170.36 and 10,476.48 is: 15,704.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792.66 : 28,170.36 = 10,476.48 : x
  2. Step 2: Convert to fraction form
    18,792.66/28,170.36 = 10,476.48/x
  3. Step 3: Cross multiply
    18,792.66x = 28,170.36 × 10,476.48
  4. Step 4: Simplify right side
    18,792.66x = 295,126,213.13
  5. Step 5: Solve for x
    x = 295,126,213.13/18,792.66
  6. Step 6: Final answer
    x = 15,704.33

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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.