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Finding the Fourth Proportional to 18,260.67, 27,391 and 4,409.67

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Solution

The fourth proportional to 18,260.67, 27,391 and 4,409.67 is: 6,614.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,260.67 : 27,391 = 4,409.67 : x
  2. Step 2: Convert to fraction form
    18,260.67/27,391 = 4,409.67/x
  3. Step 3: Cross multiply
    18,260.67x = 27,391 × 4,409.67
  4. Step 4: Simplify right side
    18,260.67x = 120,785,270.97
  5. Step 5: Solve for x
    x = 120,785,270.97/18,260.67
  6. Step 6: Final answer
    x = 6,614.50

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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.