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Finding the Fourth Proportional to 49,882.86, 74,764.14 and 21,790.86

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Solution

The fourth proportional to 49,882.86, 74,764.14 and 21,790.86 is: 32,660.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,882.86 : 74,764.14 = 21,790.86 : x
  2. Step 2: Convert to fraction form
    49,882.86/74,764.14 = 21,790.86/x
  3. Step 3: Cross multiply
    49,882.86x = 74,764.14 × 21,790.86
  4. Step 4: Simplify right side
    49,882.86x = 1,629,174,907.76
  5. Step 5: Solve for x
    x = 1,629,174,907.76/49,882.86
  6. Step 6: Final answer
    x = 32,660.01

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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.