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Finding the Fourth Proportional to 28,107.99, 38,794.47 and 18,049.14

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Solution

The fourth proportional to 28,107.99, 38,794.47 and 18,049.14 is: 24,911.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,107.99 : 38,794.47 = 18,049.14 : x
  2. Step 2: Convert to fraction form
    28,107.99/38,794.47 = 18,049.14/x
  3. Step 3: Cross multiply
    28,107.99x = 38,794.47 × 18,049.14
  4. Step 4: Simplify right side
    28,107.99x = 700,206,820.26
  5. Step 5: Solve for x
    x = 700,206,820.26/28,107.99
  6. Step 6: Final answer
    x = 24,911.31

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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.