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Finding the Fourth Proportional to 2,392.44, 3,588.71 and 748.95

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Solution

The fourth proportional to 2,392.44, 3,588.71 and 748.95 is: 1,123.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.44 : 3,588.71 = 748.95 : x
  2. Step 2: Convert to fraction form
    2,392.44/3,588.71 = 748.95/x
  3. Step 3: Cross multiply
    2,392.44x = 3,588.71 × 748.95
  4. Step 4: Simplify right side
    2,392.44x = 2,687,747.15
  5. Step 5: Solve for x
    x = 2,687,747.15/2,392.44
  6. Step 6: Final answer
    x = 1,123.44

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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.