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Finding the Fourth Proportional to 57,671.56, 86,408.91 and 31,329.13

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Solution

The fourth proportional to 57,671.56, 86,408.91 and 31,329.13 is: 46,940.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,671.56 : 86,408.91 = 31,329.13 : x
  2. Step 2: Convert to fraction form
    57,671.56/86,408.91 = 31,329.13/x
  3. Step 3: Cross multiply
    57,671.56x = 86,408.91 × 31,329.13
  4. Step 4: Simplify right side
    57,671.56x = 2,707,115,974.55
  5. Step 5: Solve for x
    x = 2,707,115,974.55/57,671.56
  6. Step 6: Final answer
    x = 46,940.22

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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.