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Finding the Fourth Proportional to 69,797.90, 96,299.38 and 39,580.85

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Solution

The fourth proportional to 69,797.90, 96,299.38 and 39,580.85 is: 54,609.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,797.90 : 96,299.38 = 39,580.85 : x
  2. Step 2: Convert to fraction form
    69,797.90/96,299.38 = 39,580.85/x
  3. Step 3: Cross multiply
    69,797.90x = 96,299.38 × 39,580.85
  4. Step 4: Simplify right side
    69,797.90x = 3,811,611,605.10
  5. Step 5: Solve for x
    x = 3,811,611,605.10/69,797.90
  6. Step 6: Final answer
    x = 54,609.26

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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.