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Finding the Fourth Proportional to 66,249.13, 91,422.90 and 36,033.80

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Solution

The fourth proportional to 66,249.13, 91,422.90 and 36,033.80 is: 49,726.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,249.13 : 91,422.90 = 36,033.80 : x
  2. Step 2: Convert to fraction form
    66,249.13/91,422.90 = 36,033.80/x
  3. Step 3: Cross multiply
    66,249.13x = 91,422.90 × 36,033.80
  4. Step 4: Simplify right side
    66,249.13x = 3,294,314,494.02
  5. Step 5: Solve for x
    x = 3,294,314,494.02/66,249.13
  6. Step 6: Final answer
    x = 49,726.15

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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.