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Finding the Fourth Proportional to 9,939.70, 14,910.24 and 3,363.66

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Solution

The fourth proportional to 9,939.70, 14,910.24 and 3,363.66 is: 5,045.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.70 : 14,910.24 = 3,363.66 : x
  2. Step 2: Convert to fraction form
    9,939.70/14,910.24 = 3,363.66/x
  3. Step 3: Cross multiply
    9,939.70x = 14,910.24 × 3,363.66
  4. Step 4: Simplify right side
    9,939.70x = 50,152,977.88
  5. Step 5: Solve for x
    x = 50,152,977.88/9,939.70
  6. Step 6: Final answer
    x = 5,045.72

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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.