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Finding the Fourth Proportional to 57,493.20, 86,239.82 and 25,866.32

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Solution

The fourth proportional to 57,493.20, 86,239.82 and 25,866.32 is: 38,799.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,493.20 : 86,239.82 = 25,866.32 : x
  2. Step 2: Convert to fraction form
    57,493.20/86,239.82 = 25,866.32/x
  3. Step 3: Cross multiply
    57,493.20x = 86,239.82 × 25,866.32
  4. Step 4: Simplify right side
    57,493.20x = 2,230,706,780.86
  5. Step 5: Solve for x
    x = 2,230,706,780.86/57,493.20
  6. Step 6: Final answer
    x = 38,799.49

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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.