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Finding the Fourth Proportional to 22,814.70, 34,228.45 and 11,128.30

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Solution

The fourth proportional to 22,814.70, 34,228.45 and 11,128.30 is: 16,695.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,814.70 : 34,228.45 = 11,128.30 : x
  2. Step 2: Convert to fraction form
    22,814.70/34,228.45 = 11,128.30/x
  3. Step 3: Cross multiply
    22,814.70x = 34,228.45 × 11,128.30
  4. Step 4: Simplify right side
    22,814.70x = 380,904,460.14
  5. Step 5: Solve for x
    x = 380,904,460.14/22,814.70
  6. Step 6: Final answer
    x = 16,695.57

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