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Finding the Fourth Proportional to 69,305.31, 95,644.58 and 39,089.97

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Solution

The fourth proportional to 69,305.31, 95,644.58 and 39,089.97 is: 53,945.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,305.31 : 95,644.58 = 39,089.97 : x
  2. Step 2: Convert to fraction form
    69,305.31/95,644.58 = 39,089.97/x
  3. Step 3: Cross multiply
    69,305.31x = 95,644.58 × 39,089.97
  4. Step 4: Simplify right side
    69,305.31x = 3,738,743,567.41
  5. Step 5: Solve for x
    x = 3,738,743,567.41/69,305.31
  6. Step 6: Final answer
    x = 53,945.99

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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.