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Finding the Fourth Proportional to 31,393.72, 43,321.98 and 17,246.26

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Solution

The fourth proportional to 31,393.72, 43,321.98 and 17,246.26 is: 23,799.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,393.72 : 43,321.98 = 17,246.26 : x
  2. Step 2: Convert to fraction form
    31,393.72/43,321.98 = 17,246.26/x
  3. Step 3: Cross multiply
    31,393.72x = 43,321.98 × 17,246.26
  4. Step 4: Simplify right side
    31,393.72x = 747,142,130.79
  5. Step 5: Solve for x
    x = 747,142,130.79/31,393.72
  6. Step 6: Final answer
    x = 23,799.10

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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.