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Finding the Fourth Proportional to 85,568.94, 128,352.96 and 23,239.44

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Solution

The fourth proportional to 85,568.94, 128,352.96 and 23,239.44 is: 34,859.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,568.94 : 128,352.96 = 23,239.44 : x
  2. Step 2: Convert to fraction form
    85,568.94/128,352.96 = 23,239.44/x
  3. Step 3: Cross multiply
    85,568.94x = 128,352.96 × 23,239.44
  4. Step 4: Simplify right side
    85,568.94x = 2,982,850,912.74
  5. Step 5: Solve for x
    x = 2,982,850,912.74/85,568.94
  6. Step 6: Final answer
    x = 34,859.04

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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.