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Finding the Fourth Proportional to 18,398.28, 27,601.49 and 6,711.46

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Solution

The fourth proportional to 18,398.28, 27,601.49 and 6,711.46 is: 10,068.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.28 : 27,601.49 = 6,711.46 : x
  2. Step 2: Convert to fraction form
    18,398.28/27,601.49 = 6,711.46/x
  3. Step 3: Cross multiply
    18,398.28x = 27,601.49 × 6,711.46
  4. Step 4: Simplify right side
    18,398.28x = 185,246,296.08
  5. Step 5: Solve for x
    x = 185,246,296.08/18,398.28
  6. Step 6: Final answer
    x = 10,068.67

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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.