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Finding the Fourth Proportional to 31,753.65, 43,825.76 and 18,323.04

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Solution

The fourth proportional to 31,753.65, 43,825.76 and 18,323.04 is: 25,289.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,753.65 : 43,825.76 = 18,323.04 : x
  2. Step 2: Convert to fraction form
    31,753.65/43,825.76 = 18,323.04/x
  3. Step 3: Cross multiply
    31,753.65x = 43,825.76 × 18,323.04
  4. Step 4: Simplify right side
    31,753.65x = 803,021,061.90
  5. Step 5: Solve for x
    x = 803,021,061.90/31,753.65
  6. Step 6: Final answer
    x = 25,289.09

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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.