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Finding the Fourth Proportional to 20,593.38, 30,890.07 and 5,803.86

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Solution

The fourth proportional to 20,593.38, 30,890.07 and 5,803.86 is: 8,705.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.38 : 30,890.07 = 5,803.86 : x
  2. Step 2: Convert to fraction form
    20,593.38/30,890.07 = 5,803.86/x
  3. Step 3: Cross multiply
    20,593.38x = 30,890.07 × 5,803.86
  4. Step 4: Simplify right side
    20,593.38x = 179,281,641.67
  5. Step 5: Solve for x
    x = 179,281,641.67/20,593.38
  6. Step 6: Final answer
    x = 8,705.79

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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.