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Finding the Fourth Proportional to 2,084.44, 3,126.36 and 851.84

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Solution

The fourth proportional to 2,084.44, 3,126.36 and 851.84 is: 1,277.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.44 : 3,126.36 = 851.84 : x
  2. Step 2: Convert to fraction form
    2,084.44/3,126.36 = 851.84/x
  3. Step 3: Cross multiply
    2,084.44x = 3,126.36 × 851.84
  4. Step 4: Simplify right side
    2,084.44x = 2,663,158.50
  5. Step 5: Solve for x
    x = 2,663,158.50/2,084.44
  6. Step 6: Final answer
    x = 1,277.64

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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.