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Finding the Fourth Proportional to 69,504.46, 95,911.42 and 39,290.92

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Solution

The fourth proportional to 69,504.46, 95,911.42 and 39,290.92 is: 54,218.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,504.46 : 95,911.42 = 39,290.92 : x
  2. Step 2: Convert to fraction form
    69,504.46/95,911.42 = 39,290.92/x
  3. Step 3: Cross multiply
    69,504.46x = 95,911.42 × 39,290.92
  4. Step 4: Simplify right side
    69,504.46x = 3,768,447,930.31
  5. Step 5: Solve for x
    x = 3,768,447,930.31/69,504.46
  6. Step 6: Final answer
    x = 54,218.79

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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.