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Finding the Fourth Proportional to 28,694.56, 43,035.00 and 12,054.92

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Solution

The fourth proportional to 28,694.56, 43,035.00 and 12,054.92 is: 18,079.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,694.56 : 43,035.00 = 12,054.92 : x
  2. Step 2: Convert to fraction form
    28,694.56/43,035.00 = 12,054.92/x
  3. Step 3: Cross multiply
    28,694.56x = 43,035.00 × 12,054.92
  4. Step 4: Simplify right side
    28,694.56x = 518,783,297.16
  5. Step 5: Solve for x
    x = 518,783,297.16/28,694.56
  6. Step 6: Final answer
    x = 18,079.50

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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.