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Finding the Fourth Proportional to 13,943.99, 20,898.21 and 6,532.11

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Solution

The fourth proportional to 13,943.99, 20,898.21 and 6,532.11 is: 9,789.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.99 : 20,898.21 = 6,532.11 : x
  2. Step 2: Convert to fraction form
    13,943.99/20,898.21 = 6,532.11/x
  3. Step 3: Cross multiply
    13,943.99x = 20,898.21 × 6,532.11
  4. Step 4: Simplify right side
    13,943.99x = 136,509,310.70
  5. Step 5: Solve for x
    x = 136,509,310.70/13,943.99
  6. Step 6: Final answer
    x = 9,789.83

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1.5x scale

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.