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Finding the Fourth Proportional to 31,332.64, 43,239 and 17,185.54

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Solution

The fourth proportional to 31,332.64, 43,239 and 17,185.54 is: 23,716.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,332.64 : 43,239 = 17,185.54 : x
  2. Step 2: Convert to fraction form
    31,332.64/43,239 = 17,185.54/x
  3. Step 3: Cross multiply
    31,332.64x = 43,239 × 17,185.54
  4. Step 4: Simplify right side
    31,332.64x = 743,085,564.06
  5. Step 5: Solve for x
    x = 743,085,564.06/31,332.64
  6. Step 6: Final answer
    x = 23,716.02

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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.