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Finding the Fourth Proportional to 38,466.63, 57,694.17 and 12,167.96

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Solution

The fourth proportional to 38,466.63, 57,694.17 and 12,167.96 is: 18,250.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,466.63 : 57,694.17 = 12,167.96 : x
  2. Step 2: Convert to fraction form
    38,466.63/57,694.17 = 12,167.96/x
  3. Step 3: Cross multiply
    38,466.63x = 57,694.17 × 12,167.96
  4. Step 4: Simplify right side
    38,466.63x = 702,020,064.32
  5. Step 5: Solve for x
    x = 702,020,064.32/38,466.63
  6. Step 6: Final answer
    x = 18,250.11

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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.