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Finding the Fourth Proportional to 62,133.50, 85,794.78 and 50,650.20

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Solution

The fourth proportional to 62,133.50, 85,794.78 and 50,650.20 is: 69,938.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,133.50 : 85,794.78 = 50,650.20 : x
  2. Step 2: Convert to fraction form
    62,133.50/85,794.78 = 50,650.20/x
  3. Step 3: Cross multiply
    62,133.50x = 85,794.78 × 50,650.20
  4. Step 4: Simplify right side
    62,133.50x = 4,345,522,765.96
  5. Step 5: Solve for x
    x = 4,345,522,765.96/62,133.50
  6. Step 6: Final answer
    x = 69,938.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.