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Finding the Fourth Proportional to 2,696.30, 4,044.46 and 748.34

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Solution

The fourth proportional to 2,696.30, 4,044.46 and 748.34 is: 1,122.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,696.30 : 4,044.46 = 748.34 : x
  2. Step 2: Convert to fraction form
    2,696.30/4,044.46 = 748.34/x
  3. Step 3: Cross multiply
    2,696.30x = 4,044.46 × 748.34
  4. Step 4: Simplify right side
    2,696.30x = 3,026,631.20
  5. Step 5: Solve for x
    x = 3,026,631.20/2,696.30
  6. Step 6: Final answer
    x = 1,122.51

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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.