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Finding the Fourth Proportional to 66,169.71, 99,198.77 and 28,701.59

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Solution

The fourth proportional to 66,169.71, 99,198.77 and 28,701.59 is: 43,028.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,169.71 : 99,198.77 = 28,701.59 : x
  2. Step 2: Convert to fraction form
    66,169.71/99,198.77 = 28,701.59/x
  3. Step 3: Cross multiply
    66,169.71x = 99,198.77 × 28,701.59
  4. Step 4: Simplify right side
    66,169.71x = 2,847,161,785.54
  5. Step 5: Solve for x
    x = 2,847,161,785.54/66,169.71
  6. Step 6: Final answer
    x = 43,028.17

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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.