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Finding the Fourth Proportional to 13,338.18, 20,009.43 and 4,104.18

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Solution

The fourth proportional to 13,338.18, 20,009.43 and 4,104.18 is: 6,156.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.18 : 20,009.43 = 4,104.18 : x
  2. Step 2: Convert to fraction form
    13,338.18/20,009.43 = 4,104.18/x
  3. Step 3: Cross multiply
    13,338.18x = 20,009.43 × 4,104.18
  4. Step 4: Simplify right side
    13,338.18x = 82,122,302.42
  5. Step 5: Solve for x
    x = 82,122,302.42/13,338.18
  6. Step 6: Final answer
    x = 6,156.93

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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.