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Finding the Fourth Proportional to 18,372.82, 27,541.41 and 7,275.82

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Solution

The fourth proportional to 18,372.82, 27,541.41 and 7,275.82 is: 10,906.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372.82 : 27,541.41 = 7,275.82 : x
  2. Step 2: Convert to fraction form
    18,372.82/27,541.41 = 7,275.82/x
  3. Step 3: Cross multiply
    18,372.82x = 27,541.41 × 7,275.82
  4. Step 4: Simplify right side
    18,372.82x = 200,386,341.71
  5. Step 5: Solve for x
    x = 200,386,341.71/18,372.82
  6. Step 6: Final answer
    x = 10,906.67

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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.