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Finding the Fourth Proportional to 18,601.13, 27,901.94 and 5,453.77

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Solution

The fourth proportional to 18,601.13, 27,901.94 and 5,453.77 is: 8,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.13 : 27,901.94 = 5,453.77 : x
  2. Step 2: Convert to fraction form
    18,601.13/27,901.94 = 5,453.77/x
  3. Step 3: Cross multiply
    18,601.13x = 27,901.94 × 5,453.77
  4. Step 4: Simplify right side
    18,601.13x = 152,170,666.29
  5. Step 5: Solve for x
    x = 152,170,666.29/18,601.13
  6. Step 6: Final answer
    x = 8,180.72

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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.