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Finding the Fourth Proportional to 18,113.22, 27,169.83 and 4,965.71

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Solution

The fourth proportional to 18,113.22, 27,169.83 and 4,965.71 is: 7,448.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,113.22 : 27,169.83 = 4,965.71 : x
  2. Step 2: Convert to fraction form
    18,113.22/27,169.83 = 4,965.71/x
  3. Step 3: Cross multiply
    18,113.22x = 27,169.83 × 4,965.71
  4. Step 4: Simplify right side
    18,113.22x = 134,917,360.68
  5. Step 5: Solve for x
    x = 134,917,360.68/18,113.22
  6. Step 6: Final answer
    x = 7,448.56

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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.