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Finding the Fourth Proportional to 18,636.04, 27,953.40 and 8,106.04

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Solution

The fourth proportional to 18,636.04, 27,953.40 and 8,106.04 is: 12,158.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,636.04 : 27,953.40 = 8,106.04 : x
  2. Step 2: Convert to fraction form
    18,636.04/27,953.40 = 8,106.04/x
  3. Step 3: Cross multiply
    18,636.04x = 27,953.40 × 8,106.04
  4. Step 4: Simplify right side
    18,636.04x = 226,591,378.54
  5. Step 5: Solve for x
    x = 226,591,378.54/18,636.04
  6. Step 6: Final answer
    x = 12,158.77

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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.