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Finding the Fourth Proportional to 3,592.02, 5,388 and 923.60

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Solution

The fourth proportional to 3,592.02, 5,388 and 923.60 is: 1,385.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,592.02 : 5,388 = 923.60 : x
  2. Step 2: Convert to fraction form
    3,592.02/5,388 = 923.60/x
  3. Step 3: Cross multiply
    3,592.02x = 5,388 × 923.60
  4. Step 4: Simplify right side
    3,592.02x = 4,976,329.86
  5. Step 5: Solve for x
    x = 4,976,329.86/3,592.02
  6. Step 6: Final answer
    x = 1,385.39

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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.