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Finding the Fourth Proportional to 31,858.51, 43,960.92 and 17,515.98

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Solution

The fourth proportional to 31,858.51, 43,960.92 and 17,515.98 is: 24,169.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,858.51 : 43,960.92 = 17,515.98 : x
  2. Step 2: Convert to fraction form
    31,858.51/43,960.92 = 17,515.98/x
  3. Step 3: Cross multiply
    31,858.51x = 43,960.92 × 17,515.98
  4. Step 4: Simplify right side
    31,858.51x = 770,018,595.50
  5. Step 5: Solve for x
    x = 770,018,595.50/31,858.51
  6. Step 6: Final answer
    x = 24,169.95

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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.