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Finding the Fourth Proportional to 17,912.67, 26,869.02 and 6,225.90

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Solution

The fourth proportional to 17,912.67, 26,869.02 and 6,225.90 is: 9,338.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,912.67 : 26,869.02 = 6,225.90 : x
  2. Step 2: Convert to fraction form
    17,912.67/26,869.02 = 6,225.90/x
  3. Step 3: Cross multiply
    17,912.67x = 26,869.02 × 6,225.90
  4. Step 4: Simplify right side
    17,912.67x = 167,283,831.62
  5. Step 5: Solve for x
    x = 167,283,831.62/17,912.67
  6. Step 6: Final answer
    x = 9,338.86

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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.