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Finding the Fourth Proportional to 27,950.95, 38,568 and 16,620.22

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Solution

The fourth proportional to 27,950.95, 38,568 and 16,620.22 is: 22,933.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,950.95 : 38,568 = 16,620.22 : x
  2. Step 2: Convert to fraction form
    27,950.95/38,568 = 16,620.22/x
  3. Step 3: Cross multiply
    27,950.95x = 38,568 × 16,620.22
  4. Step 4: Simplify right side
    27,950.95x = 641,008,644.96
  5. Step 5: Solve for x
    x = 641,008,644.96/27,950.95
  6. Step 6: Final answer
    x = 22,933.34

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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.