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Finding the Fourth Proportional to 14,480.82, 21,719.01 and 3,951.71

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Solution

The fourth proportional to 14,480.82, 21,719.01 and 3,951.71 is: 5,926.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,480.82 : 21,719.01 = 3,951.71 : x
  2. Step 2: Convert to fraction form
    14,480.82/21,719.01 = 3,951.71/x
  3. Step 3: Cross multiply
    14,480.82x = 21,719.01 × 3,951.71
  4. Step 4: Simplify right side
    14,480.82x = 85,827,120.41
  5. Step 5: Solve for x
    x = 85,827,120.41/14,480.82
  6. Step 6: Final answer
    x = 5,926.95

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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.