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Finding the Fourth Proportional to 34,659.92, 51,989.88 and 11,288.72

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Solution

The fourth proportional to 34,659.92, 51,989.88 and 11,288.72 is: 16,933.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,659.92 : 51,989.88 = 11,288.72 : x
  2. Step 2: Convert to fraction form
    34,659.92/51,989.88 = 11,288.72/x
  3. Step 3: Cross multiply
    34,659.92x = 51,989.88 × 11,288.72
  4. Step 4: Simplify right side
    34,659.92x = 586,899,198.15
  5. Step 5: Solve for x
    x = 586,899,198.15/34,659.92
  6. Step 6: Final answer
    x = 16,933.08

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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.