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Finding the Fourth Proportional to 18,581.81, 27,876.97 and 8,053.60

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Solution

The fourth proportional to 18,581.81, 27,876.97 and 8,053.60 is: 12,082.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.81 : 27,876.97 = 8,053.60 : x
  2. Step 2: Convert to fraction form
    18,581.81/27,876.97 = 8,053.60/x
  3. Step 3: Cross multiply
    18,581.81x = 27,876.97 × 8,053.60
  4. Step 4: Simplify right side
    18,581.81x = 224,509,965.59
  5. Step 5: Solve for x
    x = 224,509,965.59/18,581.81
  6. Step 6: Final answer
    x = 12,082.24

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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.