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Finding the Fourth Proportional to 28,674.64, 43,037.88 and 12,046.96

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Solution

The fourth proportional to 28,674.64, 43,037.88 and 12,046.96 is: 18,081.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,674.64 : 43,037.88 = 12,046.96 : x
  2. Step 2: Convert to fraction form
    28,674.64/43,037.88 = 12,046.96/x
  3. Step 3: Cross multiply
    28,674.64x = 43,037.88 × 12,046.96
  4. Step 4: Simplify right side
    28,674.64x = 518,475,618.84
  5. Step 5: Solve for x
    x = 518,475,618.84/28,674.64
  6. Step 6: Final answer
    x = 18,081.33

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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.