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Finding the Fourth Proportional to 65,158.50, 97,743.24 and 20,791.56

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Solution

The fourth proportional to 65,158.50, 97,743.24 and 20,791.56 is: 31,189.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,158.50 : 97,743.24 = 20,791.56 : x
  2. Step 2: Convert to fraction form
    65,158.50/97,743.24 = 20,791.56/x
  3. Step 3: Cross multiply
    65,158.50x = 97,743.24 × 20,791.56
  4. Step 4: Simplify right side
    65,158.50x = 2,032,234,439.05
  5. Step 5: Solve for x
    x = 2,032,234,439.05/65,158.50
  6. Step 6: Final answer
    x = 31,189.09

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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.