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Finding the Fourth Proportional to 13,353.90, 18,427.82 and 7,304.04

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Solution

The fourth proportional to 13,353.90, 18,427.82 and 7,304.04 is: 10,079.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.90 : 18,427.82 = 7,304.04 : x
  2. Step 2: Convert to fraction form
    13,353.90/18,427.82 = 7,304.04/x
  3. Step 3: Cross multiply
    13,353.90x = 18,427.82 × 7,304.04
  4. Step 4: Simplify right side
    13,353.90x = 134,597,552.65
  5. Step 5: Solve for x
    x = 134,597,552.65/13,353.90
  6. Step 6: Final answer
    x = 10,079.27

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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.