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Finding the Fourth Proportional to 2,696.34, 4,044.52 and 748.55

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Solution

The fourth proportional to 2,696.34, 4,044.52 and 748.55 is: 1,122.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,696.34 : 4,044.52 = 748.55 : x
  2. Step 2: Convert to fraction form
    2,696.34/4,044.52 = 748.55/x
  3. Step 3: Cross multiply
    2,696.34x = 4,044.52 × 748.55
  4. Step 4: Simplify right side
    2,696.34x = 3,027,509.53
  5. Step 5: Solve for x
    x = 3,027,509.53/2,696.34
  6. Step 6: Final answer
    x = 1,122.82

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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.