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Finding the Fourth Proportional to 12,123.97, 18,179.52 and 3,801.72

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Solution

The fourth proportional to 12,123.97, 18,179.52 and 3,801.72 is: 5,700.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123.97 : 18,179.52 = 3,801.72 : x
  2. Step 2: Convert to fraction form
    12,123.97/18,179.52 = 3,801.72/x
  3. Step 3: Cross multiply
    12,123.97x = 18,179.52 × 3,801.72
  4. Step 4: Simplify right side
    12,123.97x = 69,113,444.77
  5. Step 5: Solve for x
    x = 69,113,444.77/12,123.97
  6. Step 6: Final answer
    x = 5,700.56

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.