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Finding the Fourth Proportional to 14,491.21, 20,100.17 and 14,107.11

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Solution

The fourth proportional to 14,491.21, 20,100.17 and 14,107.11 is: 19,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,491.21 : 20,100.17 = 14,107.11 : x
  2. Step 2: Convert to fraction form
    14,491.21/20,100.17 = 14,107.11/x
  3. Step 3: Cross multiply
    14,491.21x = 20,100.17 × 14,107.11
  4. Step 4: Simplify right side
    14,491.21x = 283,555,309.21
  5. Step 5: Solve for x
    x = 283,555,309.21/14,491.21
  6. Step 6: Final answer
    x = 19,567.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.