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Finding the Fourth Proportional to 57,659.78, 79,568.55 and 33,785.93

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Solution

The fourth proportional to 57,659.78, 79,568.55 and 33,785.93 is: 46,623.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,659.78 : 79,568.55 = 33,785.93 : x
  2. Step 2: Convert to fraction form
    57,659.78/79,568.55 = 33,785.93/x
  3. Step 3: Cross multiply
    57,659.78x = 79,568.55 × 33,785.93
  4. Step 4: Simplify right side
    57,659.78x = 2,688,297,659.42
  5. Step 5: Solve for x
    x = 2,688,297,659.42/57,659.78
  6. Step 6: Final answer
    x = 46,623.44

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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.