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Finding the Fourth Proportional to 38,251.80, 57,385.80 and 11,595.60

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Solution

The fourth proportional to 38,251.80, 57,385.80 and 11,595.60 is: 17,395.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,251.80 : 57,385.80 = 11,595.60 : x
  2. Step 2: Convert to fraction form
    38,251.80/57,385.80 = 11,595.60/x
  3. Step 3: Cross multiply
    38,251.80x = 57,385.80 × 11,595.60
  4. Step 4: Simplify right side
    38,251.80x = 665,422,782.48
  5. Step 5: Solve for x
    x = 665,422,782.48/38,251.80
  6. Step 6: Final answer
    x = 17,395.86

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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.