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Finding the Fourth Proportional to 57,220.60, 85,843.26 and 23,486.70

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Solution

The fourth proportional to 57,220.60, 85,843.26 and 23,486.70 is: 35,235.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,220.60 : 85,843.26 = 23,486.70 : x
  2. Step 2: Convert to fraction form
    57,220.60/85,843.26 = 23,486.70/x
  3. Step 3: Cross multiply
    57,220.60x = 85,843.26 × 23,486.70
  4. Step 4: Simplify right side
    57,220.60x = 2,016,174,894.64
  5. Step 5: Solve for x
    x = 2,016,174,894.64/57,220.60
  6. Step 6: Final answer
    x = 35,235.12

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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.