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Finding the Fourth Proportional to 11,888.45, 17,835.63 and 3,568.62

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Solution

The fourth proportional to 11,888.45, 17,835.63 and 3,568.62 is: 5,353.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.45 : 17,835.63 = 3,568.62 : x
  2. Step 2: Convert to fraction form
    11,888.45/17,835.63 = 3,568.62/x
  3. Step 3: Cross multiply
    11,888.45x = 17,835.63 × 3,568.62
  4. Step 4: Simplify right side
    11,888.45x = 63,648,478.91
  5. Step 5: Solve for x
    x = 63,648,478.91/11,888.45
  6. Step 6: Final answer
    x = 5,353.81

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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.