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Finding the Fourth Proportional to 20,250.46, 27,927.46 and 12,697.62

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Solution

The fourth proportional to 20,250.46, 27,927.46 and 12,697.62 is: 17,511.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.46 : 27,927.46 = 12,697.62 : x
  2. Step 2: Convert to fraction form
    20,250.46/27,927.46 = 12,697.62/x
  3. Step 3: Cross multiply
    20,250.46x = 27,927.46 × 12,697.62
  4. Step 4: Simplify right side
    20,250.46x = 354,612,274.65
  5. Step 5: Solve for x
    x = 354,612,274.65/20,250.46
  6. Step 6: Final answer
    x = 17,511.32

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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.