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Finding the Fourth Proportional to 13,872.92, 19,144.68 and 7,585.28

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Solution

The fourth proportional to 13,872.92, 19,144.68 and 7,585.28 is: 10,467.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.92 : 19,144.68 = 7,585.28 : x
  2. Step 2: Convert to fraction form
    13,872.92/19,144.68 = 7,585.28/x
  3. Step 3: Cross multiply
    13,872.92x = 19,144.68 × 7,585.28
  4. Step 4: Simplify right side
    13,872.92x = 145,217,758.31
  5. Step 5: Solve for x
    x = 145,217,758.31/13,872.92
  6. Step 6: Final answer
    x = 10,467.71

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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.