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Finding the Fourth Proportional to 27,959.87, 38,571.90 and 16,622.93

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Solution

The fourth proportional to 27,959.87, 38,571.90 and 16,622.93 is: 22,932.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,959.87 : 38,571.90 = 16,622.93 : x
  2. Step 2: Convert to fraction form
    27,959.87/38,571.90 = 16,622.93/x
  3. Step 3: Cross multiply
    27,959.87x = 38,571.90 × 16,622.93
  4. Step 4: Simplify right side
    27,959.87x = 641,178,131.65
  5. Step 5: Solve for x
    x = 641,178,131.65/27,959.87
  6. Step 6: Final answer
    x = 22,932.09

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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.