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Finding the Fourth Proportional to 37,709.38, 56,560.38 and 18,981.94

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Solution

The fourth proportional to 37,709.38, 56,560.38 and 18,981.94 is: 28,471.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,709.38 : 56,560.38 = 18,981.94 : x
  2. Step 2: Convert to fraction form
    37,709.38/56,560.38 = 18,981.94/x
  3. Step 3: Cross multiply
    37,709.38x = 56,560.38 × 18,981.94
  4. Step 4: Simplify right side
    37,709.38x = 1,073,625,739.54
  5. Step 5: Solve for x
    x = 1,073,625,739.54/37,709.38
  6. Step 6: Final answer
    x = 28,471.05

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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.