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Finding the Fourth Proportional to 69,433.56, 95,809.50 and 39,220.56

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Solution

The fourth proportional to 69,433.56, 95,809.50 and 39,220.56 is: 54,119.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,433.56 : 95,809.50 = 39,220.56 : x
  2. Step 2: Convert to fraction form
    69,433.56/95,809.50 = 39,220.56/x
  3. Step 3: Cross multiply
    69,433.56x = 95,809.50 × 39,220.56
  4. Step 4: Simplify right side
    69,433.56x = 3,757,702,243.32
  5. Step 5: Solve for x
    x = 3,757,702,243.32/69,433.56
  6. Step 6: Final answer
    x = 54,119.39

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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.