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Finding the Fourth Proportional to 18,750.93, 25,879.44 and 10,791.69

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Solution

The fourth proportional to 18,750.93, 25,879.44 and 10,791.69 is: 14,894.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.93 : 25,879.44 = 10,791.69 : x
  2. Step 2: Convert to fraction form
    18,750.93/25,879.44 = 10,791.69/x
  3. Step 3: Cross multiply
    18,750.93x = 25,879.44 × 10,791.69
  4. Step 4: Simplify right side
    18,750.93x = 279,282,893.85
  5. Step 5: Solve for x
    x = 279,282,893.85/18,750.93
  6. Step 6: Final answer
    x = 14,894.35

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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.