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Finding the Fourth Proportional to 14,636.65, 20,198.13 and 8,263.48

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Solution

The fourth proportional to 14,636.65, 20,198.13 and 8,263.48 is: 11,403.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,636.65 : 20,198.13 = 8,263.48 : x
  2. Step 2: Convert to fraction form
    14,636.65/20,198.13 = 8,263.48/x
  3. Step 3: Cross multiply
    14,636.65x = 20,198.13 × 8,263.48
  4. Step 4: Simplify right side
    14,636.65x = 166,906,843.29
  5. Step 5: Solve for x
    x = 166,906,843.29/14,636.65
  6. Step 6: Final answer
    x = 11,403.35

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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.