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Finding the Fourth Proportional to 13,448.60, 18,550.44 and 8,674.64

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Solution

The fourth proportional to 13,448.60, 18,550.44 and 8,674.64 is: 11,965.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.60 : 18,550.44 = 8,674.64 : x
  2. Step 2: Convert to fraction form
    13,448.60/18,550.44 = 8,674.64/x
  3. Step 3: Cross multiply
    13,448.60x = 18,550.44 × 8,674.64
  4. Step 4: Simplify right side
    13,448.60x = 160,918,296.09
  5. Step 5: Solve for x
    x = 160,918,296.09/13,448.60
  6. Step 6: Final answer
    x = 11,965.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.