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Finding the Fourth Proportional to 3,618.54, 5,420.93 and 3,037.37

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Solution

The fourth proportional to 3,618.54, 5,420.93 and 3,037.37 is: 4,550.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.54 : 5,420.93 = 3,037.37 : x
  2. Step 2: Convert to fraction form
    3,618.54/5,420.93 = 3,037.37/x
  3. Step 3: Cross multiply
    3,618.54x = 5,420.93 × 3,037.37
  4. Step 4: Simplify right side
    3,618.54x = 16,465,327.86
  5. Step 5: Solve for x
    x = 16,465,327.86/3,618.54
  6. Step 6: Final answer
    x = 4,550.27

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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.