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Finding the Fourth Proportional to 11,892.09, 17,838.29 and 5,652.71

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Solution

The fourth proportional to 11,892.09, 17,838.29 and 5,652.71 is: 8,479.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,892.09 : 17,838.29 = 5,652.71 : x
  2. Step 2: Convert to fraction form
    11,892.09/17,838.29 = 5,652.71/x
  3. Step 3: Cross multiply
    11,892.09x = 17,838.29 × 5,652.71
  4. Step 4: Simplify right side
    11,892.09x = 100,834,562.81
  5. Step 5: Solve for x
    x = 100,834,562.81/11,892.09
  6. Step 6: Final answer
    x = 8,479.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.