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Finding the Fourth Proportional to 13,351.64, 18,425.28 and 7,301.96

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Solution

The fourth proportional to 13,351.64, 18,425.28 and 7,301.96 is: 10,076.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.64 : 18,425.28 = 7,301.96 : x
  2. Step 2: Convert to fraction form
    13,351.64/18,425.28 = 7,301.96/x
  3. Step 3: Cross multiply
    13,351.64x = 18,425.28 × 7,301.96
  4. Step 4: Simplify right side
    13,351.64x = 134,540,657.55
  5. Step 5: Solve for x
    x = 134,540,657.55/13,351.64
  6. Step 6: Final answer
    x = 10,076.71

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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.