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Finding the Fourth Proportional to 18,179.19, 25,086.83 and 10,221.41

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Solution

The fourth proportional to 18,179.19, 25,086.83 and 10,221.41 is: 14,105.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.19 : 25,086.83 = 10,221.41 : x
  2. Step 2: Convert to fraction form
    18,179.19/25,086.83 = 10,221.41/x
  3. Step 3: Cross multiply
    18,179.19x = 25,086.83 × 10,221.41
  4. Step 4: Simplify right side
    18,179.19x = 256,422,598.49
  5. Step 5: Solve for x
    x = 256,422,598.49/18,179.19
  6. Step 6: Final answer
    x = 14,105.28

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Half scale
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Double scale
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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.