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Finding the Fourth Proportional to 23,043.92, 31,798.80 and 13,610.72

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Solution

The fourth proportional to 23,043.92, 31,798.80 and 13,610.72 is: 18,781.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,043.92 : 31,798.80 = 13,610.72 : x
  2. Step 2: Convert to fraction form
    23,043.92/31,798.80 = 13,610.72/x
  3. Step 3: Cross multiply
    23,043.92x = 31,798.80 × 13,610.72
  4. Step 4: Simplify right side
    23,043.92x = 432,804,563.14
  5. Step 5: Solve for x
    x = 432,804,563.14/23,043.92
  6. Step 6: Final answer
    x = 18,781.72

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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.