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Finding the Fourth Proportional to 18,609.80, 27,914.70 and 10,833.80

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Solution

The fourth proportional to 18,609.80, 27,914.70 and 10,833.80 is: 16,250.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,609.80 : 27,914.70 = 10,833.80 : x
  2. Step 2: Convert to fraction form
    18,609.80/27,914.70 = 10,833.80/x
  3. Step 3: Cross multiply
    18,609.80x = 27,914.70 × 10,833.80
  4. Step 4: Simplify right side
    18,609.80x = 302,422,276.86
  5. Step 5: Solve for x
    x = 302,422,276.86/18,609.80
  6. Step 6: Final answer
    x = 16,250.70

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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.