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Finding the Fourth Proportional to 14,663.70, 20,234.97 and 8,375.94

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Solution

The fourth proportional to 14,663.70, 20,234.97 and 8,375.94 is: 11,558.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,663.70 : 20,234.97 = 8,375.94 : x
  2. Step 2: Convert to fraction form
    14,663.70/20,234.97 = 8,375.94/x
  3. Step 3: Cross multiply
    14,663.70x = 20,234.97 × 8,375.94
  4. Step 4: Simplify right side
    14,663.70x = 169,486,894.62
  5. Step 5: Solve for x
    x = 169,486,894.62/14,663.70
  6. Step 6: Final answer
    x = 11,558.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.