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Finding the Fourth Proportional to 14,014.69, 20,996.39 and 11,019.18

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Solution

The fourth proportional to 14,014.69, 20,996.39 and 11,019.18 is: 16,508.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,014.69 : 20,996.39 = 11,019.18 : x
  2. Step 2: Convert to fraction form
    14,014.69/20,996.39 = 11,019.18/x
  3. Step 3: Cross multiply
    14,014.69x = 20,996.39 × 11,019.18
  4. Step 4: Simplify right side
    14,014.69x = 231,363,000.76
  5. Step 5: Solve for x
    x = 231,363,000.76/14,014.69
  6. Step 6: Final answer
    x = 16,508.61

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1.5x scale

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.