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Finding the Fourth Proportional to 31,753.56, 43,809.95 and 18,323.06

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Solution

The fourth proportional to 31,753.56, 43,809.95 and 18,323.06 is: 25,280.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,753.56 : 43,809.95 = 18,323.06 : x
  2. Step 2: Convert to fraction form
    31,753.56/43,809.95 = 18,323.06/x
  3. Step 3: Cross multiply
    31,753.56x = 43,809.95 × 18,323.06
  4. Step 4: Simplify right side
    31,753.56x = 802,732,031.78
  5. Step 5: Solve for x
    x = 802,732,031.78/31,753.56
  6. Step 6: Final answer
    x = 25,280.06

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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.