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Finding the Fourth Proportional to 9,125.79, 13,687.11 and 2,550.42

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Solution

The fourth proportional to 9,125.79, 13,687.11 and 2,550.42 is: 3,825.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.79 : 13,687.11 = 2,550.42 : x
  2. Step 2: Convert to fraction form
    9,125.79/13,687.11 = 2,550.42/x
  3. Step 3: Cross multiply
    9,125.79x = 13,687.11 × 2,550.42
  4. Step 4: Simplify right side
    9,125.79x = 34,907,879.09
  5. Step 5: Solve for x
    x = 34,907,879.09/9,125.79
  6. Step 6: Final answer
    x = 3,825.19

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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.