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Finding the Fourth Proportional to 10,951.70, 16,427.52 and 4,379.42

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Solution

The fourth proportional to 10,951.70, 16,427.52 and 4,379.42 is: 6,569.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,951.70 : 16,427.52 = 4,379.42 : x
  2. Step 2: Convert to fraction form
    10,951.70/16,427.52 = 4,379.42/x
  3. Step 3: Cross multiply
    10,951.70x = 16,427.52 × 4,379.42
  4. Step 4: Simplify right side
    10,951.70x = 71,942,927.50
  5. Step 5: Solve for x
    x = 71,942,927.50/10,951.70
  6. Step 6: Final answer
    x = 6,569.11

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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.