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Finding the Fourth Proportional to 3,605.52, 5,410.20 and 1,553.68

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Solution

The fourth proportional to 3,605.52, 5,410.20 and 1,553.68 is: 2,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.52 : 5,410.20 = 1,553.68 : x
  2. Step 2: Convert to fraction form
    3,605.52/5,410.20 = 1,553.68/x
  3. Step 3: Cross multiply
    3,605.52x = 5,410.20 × 1,553.68
  4. Step 4: Simplify right side
    3,605.52x = 8,405,719.54
  5. Step 5: Solve for x
    x = 8,405,719.54/3,605.52
  6. Step 6: Final answer
    x = 2,331.35

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1.5x scale

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.