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Finding the Fourth Proportional to 57,997.90, 86,993.59 and 15,874.89

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Solution

The fourth proportional to 57,997.90, 86,993.59 and 15,874.89 is: 23,811.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,997.90 : 86,993.59 = 15,874.89 : x
  2. Step 2: Convert to fraction form
    57,997.90/86,993.59 = 15,874.89/x
  3. Step 3: Cross multiply
    57,997.90x = 86,993.59 × 15,874.89
  4. Step 4: Simplify right side
    57,997.90x = 1,381,013,671.96
  5. Step 5: Solve for x
    x = 1,381,013,671.96/57,997.90
  6. Step 6: Final answer
    x = 23,811.44

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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.