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Finding the Fourth Proportional to 18,495.81, 27,737.28 and 7,399.62

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Solution

The fourth proportional to 18,495.81, 27,737.28 and 7,399.62 is: 11,096.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,495.81 : 27,737.28 = 7,399.62 : x
  2. Step 2: Convert to fraction form
    18,495.81/27,737.28 = 7,399.62/x
  3. Step 3: Cross multiply
    18,495.81x = 27,737.28 × 7,399.62
  4. Step 4: Simplify right side
    18,495.81x = 205,245,331.83
  5. Step 5: Solve for x
    x = 205,245,331.83/18,495.81
  6. Step 6: Final answer
    x = 11,096.86

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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.