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Finding the Fourth Proportional to 28,846.30, 43,305.90 and 15,529.90

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Solution

The fourth proportional to 28,846.30, 43,305.90 and 15,529.90 is: 23,314.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,846.30 : 43,305.90 = 15,529.90 : x
  2. Step 2: Convert to fraction form
    28,846.30/43,305.90 = 15,529.90/x
  3. Step 3: Cross multiply
    28,846.30x = 43,305.90 × 15,529.90
  4. Step 4: Simplify right side
    28,846.30x = 672,536,296.41
  5. Step 5: Solve for x
    x = 672,536,296.41/28,846.30
  6. Step 6: Final answer
    x = 23,314.47

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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.