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Finding the Fourth Proportional to 11,929.57, 16,462.54 and 6,624.29

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Solution

The fourth proportional to 11,929.57, 16,462.54 and 6,624.29 is: 9,141.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.57 : 16,462.54 = 6,624.29 : x
  2. Step 2: Convert to fraction form
    11,929.57/16,462.54 = 6,624.29/x
  3. Step 3: Cross multiply
    11,929.57x = 16,462.54 × 6,624.29
  4. Step 4: Simplify right side
    11,929.57x = 109,052,639.10
  5. Step 5: Solve for x
    x = 109,052,639.10/11,929.57
  6. Step 6: Final answer
    x = 9,141.37

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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.