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Finding the Fourth Proportional to 11,892.74, 17,835.60 and 4,491.68

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Solution

The fourth proportional to 11,892.74, 17,835.60 and 4,491.68 is: 6,736.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,892.74 : 17,835.60 = 4,491.68 : x
  2. Step 2: Convert to fraction form
    11,892.74/17,835.60 = 4,491.68/x
  3. Step 3: Cross multiply
    11,892.74x = 17,835.60 × 4,491.68
  4. Step 4: Simplify right side
    11,892.74x = 80,111,807.81
  5. Step 5: Solve for x
    x = 80,111,807.81/11,892.74
  6. Step 6: Final answer
    x = 6,736.19

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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.