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Finding the Fourth Proportional to 13,364.26, 20,040.47 and 7,123.11

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Solution

The fourth proportional to 13,364.26, 20,040.47 and 7,123.11 is: 10,681.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,364.26 : 20,040.47 = 7,123.11 : x
  2. Step 2: Convert to fraction form
    13,364.26/20,040.47 = 7,123.11/x
  3. Step 3: Cross multiply
    13,364.26x = 20,040.47 × 7,123.11
  4. Step 4: Simplify right side
    13,364.26x = 142,750,436.65
  5. Step 5: Solve for x
    x = 142,750,436.65/13,364.26
  6. Step 6: Final answer
    x = 10,681.51

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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.