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Finding the Fourth Proportional to 30,021.53, 41,398.53 and 25,786.50

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Solution

The fourth proportional to 30,021.53, 41,398.53 and 25,786.50 is: 35,558.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,021.53 : 41,398.53 = 25,786.50 : x
  2. Step 2: Convert to fraction form
    30,021.53/41,398.53 = 25,786.50/x
  3. Step 3: Cross multiply
    30,021.53x = 41,398.53 × 25,786.50
  4. Step 4: Simplify right side
    30,021.53x = 1,067,523,193.85
  5. Step 5: Solve for x
    x = 1,067,523,193.85/30,021.53
  6. Step 6: Final answer
    x = 35,558.59

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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.