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Finding the Fourth Proportional to 1,467.64, 2,200.92 and 851.50

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Solution

The fourth proportional to 1,467.64, 2,200.92 and 851.50 is: 1,276.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467.64 : 2,200.92 = 851.50 : x
  2. Step 2: Convert to fraction form
    1,467.64/2,200.92 = 851.50/x
  3. Step 3: Cross multiply
    1,467.64x = 2,200.92 × 851.50
  4. Step 4: Simplify right side
    1,467.64x = 1,874,083.38
  5. Step 5: Solve for x
    x = 1,874,083.38/1,467.64
  6. Step 6: Final answer
    x = 1,276.94

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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.