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Finding the Fourth Proportional to 73,601.62, 110,390.58 and 20,998.81

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Solution

The fourth proportional to 73,601.62, 110,390.58 and 20,998.81 is: 31,494.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,601.62 : 110,390.58 = 20,998.81 : x
  2. Step 2: Convert to fraction form
    73,601.62/110,390.58 = 20,998.81/x
  3. Step 3: Cross multiply
    73,601.62x = 110,390.58 × 20,998.81
  4. Step 4: Simplify right side
    73,601.62x = 2,318,070,815.21
  5. Step 5: Solve for x
    x = 2,318,070,815.21/73,601.62
  6. Step 6: Final answer
    x = 31,494.83

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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.