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Finding the Fourth Proportional to 57,143.80, 85,729.39 and 23,845.34

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Solution

The fourth proportional to 57,143.80, 85,729.39 and 23,845.34 is: 35,773.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,143.80 : 85,729.39 = 23,845.34 : x
  2. Step 2: Convert to fraction form
    57,143.80/85,729.39 = 23,845.34/x
  3. Step 3: Cross multiply
    57,143.80x = 85,729.39 × 23,845.34
  4. Step 4: Simplify right side
    57,143.80x = 2,044,246,607.25
  5. Step 5: Solve for x
    x = 2,044,246,607.25/57,143.80
  6. Step 6: Final answer
    x = 35,773.72

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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.