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Finding the Fourth Proportional to 35,956.92, 49,620.72 and 20,858.52

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Solution

The fourth proportional to 35,956.92, 49,620.72 and 20,858.52 is: 28,784.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,956.92 : 49,620.72 = 20,858.52 : x
  2. Step 2: Convert to fraction form
    35,956.92/49,620.72 = 20,858.52/x
  3. Step 3: Cross multiply
    35,956.92x = 49,620.72 × 20,858.52
  4. Step 4: Simplify right side
    35,956.92x = 1,035,014,780.53
  5. Step 5: Solve for x
    x = 1,035,014,780.53/35,956.92
  6. Step 6: Final answer
    x = 28,784.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.