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Finding the Fourth Proportional to 72,568.44, 108,886.12 and 33,137.64

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Solution

The fourth proportional to 72,568.44, 108,886.12 and 33,137.64 is: 49,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,568.44 : 108,886.12 = 33,137.64 : x
  2. Step 2: Convert to fraction form
    72,568.44/108,886.12 = 33,137.64/x
  3. Step 3: Cross multiply
    72,568.44x = 108,886.12 × 33,137.64
  4. Step 4: Simplify right side
    72,568.44x = 3,608,229,045.56
  5. Step 5: Solve for x
    x = 3,608,229,045.56/72,568.44
  6. Step 6: Final answer
    x = 49,721.74

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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.