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Finding the Fourth Proportional to 18,673.26, 28,010.26 and 5,525.62

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Solution

The fourth proportional to 18,673.26, 28,010.26 and 5,525.62 is: 8,288.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,673.26 : 28,010.26 = 5,525.62 : x
  2. Step 2: Convert to fraction form
    18,673.26/28,010.26 = 5,525.62/x
  3. Step 3: Cross multiply
    18,673.26x = 28,010.26 × 5,525.62
  4. Step 4: Simplify right side
    18,673.26x = 154,774,052.86
  5. Step 5: Solve for x
    x = 154,774,052.86/18,673.26
  6. Step 6: Final answer
    x = 8,288.54

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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.