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Finding the Fourth Proportional to 4,991.70, 7,495.92 and 4,793.05

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Solution

The fourth proportional to 4,991.70, 7,495.92 and 4,793.05 is: 7,197.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.70 : 7,495.92 = 4,793.05 : x
  2. Step 2: Convert to fraction form
    4,991.70/7,495.92 = 4,793.05/x
  3. Step 3: Cross multiply
    4,991.70x = 7,495.92 × 4,793.05
  4. Step 4: Simplify right side
    4,991.70x = 35,928,319.36
  5. Step 5: Solve for x
    x = 35,928,319.36/4,991.70
  6. Step 6: Final answer
    x = 7,197.61

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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.