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Finding the Fourth Proportional to 7,267.70, 10,903.10 and 4,149.20

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Solution

The fourth proportional to 7,267.70, 10,903.10 and 4,149.20 is: 6,224.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,267.70 : 10,903.10 = 4,149.20 : x
  2. Step 2: Convert to fraction form
    7,267.70/10,903.10 = 4,149.20/x
  3. Step 3: Cross multiply
    7,267.70x = 10,903.10 × 4,149.20
  4. Step 4: Simplify right side
    7,267.70x = 45,239,067.26
  5. Step 5: Solve for x
    x = 45,239,067.26/7,267.70
  6. Step 6: Final answer
    x = 6,224.68

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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.