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Finding the Fourth Proportional to 25,893.80, 38,844.54 and 8,357.80

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Solution

The fourth proportional to 25,893.80, 38,844.54 and 8,357.80 is: 12,537.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,893.80 : 38,844.54 = 8,357.80 : x
  2. Step 2: Convert to fraction form
    25,893.80/38,844.54 = 8,357.80/x
  3. Step 3: Cross multiply
    25,893.80x = 38,844.54 × 8,357.80
  4. Step 4: Simplify right side
    25,893.80x = 324,654,896.41
  5. Step 5: Solve for x
    x = 324,654,896.41/25,893.80
  6. Step 6: Final answer
    x = 12,537.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.