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Finding the Fourth Proportional to 73,898.38, 110,845.68 and 20,590.12

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Solution

The fourth proportional to 73,898.38, 110,845.68 and 20,590.12 is: 30,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,898.38 : 110,845.68 = 20,590.12 : x
  2. Step 2: Convert to fraction form
    73,898.38/110,845.68 = 20,590.12/x
  3. Step 3: Cross multiply
    73,898.38x = 110,845.68 × 20,590.12
  4. Step 4: Simplify right side
    73,898.38x = 2,282,325,852.68
  5. Step 5: Solve for x
    x = 2,282,325,852.68/73,898.38
  6. Step 6: Final answer
    x = 30,884.65

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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.