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Finding the Fourth Proportional to 18,650.16, 27,986.77 and 7,556.94

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Solution

The fourth proportional to 18,650.16, 27,986.77 and 7,556.94 is: 11,340.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.16 : 27,986.77 = 7,556.94 : x
  2. Step 2: Convert to fraction form
    18,650.16/27,986.77 = 7,556.94/x
  3. Step 3: Cross multiply
    18,650.16x = 27,986.77 × 7,556.94
  4. Step 4: Simplify right side
    18,650.16x = 211,494,288.94
  5. Step 5: Solve for x
    x = 211,494,288.94/18,650.16
  6. Step 6: Final answer
    x = 11,340.08

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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.