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Finding the Fourth Proportional to 14,911.30, 22,377.30 and 11,221.30

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Solution

The fourth proportional to 14,911.30, 22,377.30 and 11,221.30 is: 16,839.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,911.30 : 22,377.30 = 11,221.30 : x
  2. Step 2: Convert to fraction form
    14,911.30/22,377.30 = 11,221.30/x
  3. Step 3: Cross multiply
    14,911.30x = 22,377.30 × 11,221.30
  4. Step 4: Simplify right side
    14,911.30x = 251,102,396.49
  5. Step 5: Solve for x
    x = 251,102,396.49/14,911.30
  6. Step 6: Final answer
    x = 16,839.74

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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.