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Finding the Fourth Proportional to 28,664.94, 43,014.02 and 12,023.49

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Solution

The fourth proportional to 28,664.94, 43,014.02 and 12,023.49 is: 18,042.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,664.94 : 43,014.02 = 12,023.49 : x
  2. Step 2: Convert to fraction form
    28,664.94/43,014.02 = 12,023.49/x
  3. Step 3: Cross multiply
    28,664.94x = 43,014.02 × 12,023.49
  4. Step 4: Simplify right side
    28,664.94x = 517,178,639.33
  5. Step 5: Solve for x
    x = 517,178,639.33/28,664.94
  6. Step 6: Final answer
    x = 18,042.20

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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.