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Finding the Fourth Proportional to 14,016.81, 21,028.11 and 5,696.81

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Solution

The fourth proportional to 14,016.81, 21,028.11 and 5,696.81 is: 8,546.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,016.81 : 21,028.11 = 5,696.81 : x
  2. Step 2: Convert to fraction form
    14,016.81/21,028.11 = 5,696.81/x
  3. Step 3: Cross multiply
    14,016.81x = 21,028.11 × 5,696.81
  4. Step 4: Simplify right side
    14,016.81x = 119,793,217.96
  5. Step 5: Solve for x
    x = 119,793,217.96/14,016.81
  6. Step 6: Final answer
    x = 8,546.39

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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.