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Finding the Fourth Proportional to 14,849.11, 20,491.04 and 8,134.77

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Solution

The fourth proportional to 14,849.11, 20,491.04 and 8,134.77 is: 11,225.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,849.11 : 20,491.04 = 8,134.77 : x
  2. Step 2: Convert to fraction form
    14,849.11/20,491.04 = 8,134.77/x
  3. Step 3: Cross multiply
    14,849.11x = 20,491.04 × 8,134.77
  4. Step 4: Simplify right side
    14,849.11x = 166,689,917.80
  5. Step 5: Solve for x
    x = 166,689,917.80/14,849.11
  6. Step 6: Final answer
    x = 11,225.58

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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.