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Finding the Fourth Proportional to 31,042.88, 46,548.80 and 15,469.12

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Solution

The fourth proportional to 31,042.88, 46,548.80 and 15,469.12 is: 23,195.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,042.88 : 46,548.80 = 15,469.12 : x
  2. Step 2: Convert to fraction form
    31,042.88/46,548.80 = 15,469.12/x
  3. Step 3: Cross multiply
    31,042.88x = 46,548.80 × 15,469.12
  4. Step 4: Simplify right side
    31,042.88x = 720,068,973.06
  5. Step 5: Solve for x
    x = 720,068,973.06/31,042.88
  6. Step 6: Final answer
    x = 23,195.95

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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.