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Finding the Fourth Proportional to 57,210.42, 85,821.39 and 15,093.41

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Solution

The fourth proportional to 57,210.42, 85,821.39 and 15,093.41 is: 22,641.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,210.42 : 85,821.39 = 15,093.41 : x
  2. Step 2: Convert to fraction form
    57,210.42/85,821.39 = 15,093.41/x
  3. Step 3: Cross multiply
    57,210.42x = 85,821.39 × 15,093.41
  4. Step 4: Simplify right side
    57,210.42x = 1,295,337,640.59
  5. Step 5: Solve for x
    x = 1,295,337,640.59/57,210.42
  6. Step 6: Final answer
    x = 22,641.64

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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.