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Finding the Fourth Proportional to 4,991.26, 7,486.88 and 1,343.26

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Solution

The fourth proportional to 4,991.26, 7,486.88 and 1,343.26 is: 2,014.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.26 : 7,486.88 = 1,343.26 : x
  2. Step 2: Convert to fraction form
    4,991.26/7,486.88 = 1,343.26/x
  3. Step 3: Cross multiply
    4,991.26x = 7,486.88 × 1,343.26
  4. Step 4: Simplify right side
    4,991.26x = 10,056,826.43
  5. Step 5: Solve for x
    x = 10,056,826.43/4,991.26
  6. Step 6: Final answer
    x = 2,014.89

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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.