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Finding the Fourth Proportional to 66,886.94, 100,335.88 and 33,589.86

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Solution

The fourth proportional to 66,886.94, 100,335.88 and 33,589.86 is: 50,387.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,886.94 : 100,335.88 = 33,589.86 : x
  2. Step 2: Convert to fraction form
    66,886.94/100,335.88 = 33,589.86/x
  3. Step 3: Cross multiply
    66,886.94x = 100,335.88 × 33,589.86
  4. Step 4: Simplify right side
    66,886.94x = 3,370,268,162.18
  5. Step 5: Solve for x
    x = 3,370,268,162.18/66,886.94
  6. Step 6: Final answer
    x = 50,387.54

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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.