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Finding the Fourth Proportional to 69,394.50, 95,764.41 and 39,586.50

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Solution

The fourth proportional to 69,394.50, 95,764.41 and 39,586.50 is: 54,629.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,394.50 : 95,764.41 = 39,586.50 : x
  2. Step 2: Convert to fraction form
    69,394.50/95,764.41 = 39,586.50/x
  3. Step 3: Cross multiply
    69,394.50x = 95,764.41 × 39,586.50
  4. Step 4: Simplify right side
    69,394.50x = 3,790,977,816.47
  5. Step 5: Solve for x
    x = 3,790,977,816.47/69,394.50
  6. Step 6: Final answer
    x = 54,629.37

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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.