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Finding the Fourth Proportional to 3,553.47, 5,329.94 and 1,472.99

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Solution

The fourth proportional to 3,553.47, 5,329.94 and 1,472.99 is: 2,209.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.47 : 5,329.94 = 1,472.99 : x
  2. Step 2: Convert to fraction form
    3,553.47/5,329.94 = 1,472.99/x
  3. Step 3: Cross multiply
    3,553.47x = 5,329.94 × 1,472.99
  4. Step 4: Simplify right side
    3,553.47x = 7,850,914.31
  5. Step 5: Solve for x
    x = 7,850,914.31/3,553.47
  6. Step 6: Final answer
    x = 2,209.37

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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.